# ![@xkcd_whatif Avatar](https://lunarcrush.com/gi/w:26/cr:youtube::UC6IxnFzHofFJ5X2PycSMsww.png) @xkcd_whatif xkcd's What If?

xkcd's What If? posts on YouTube about if you, earth, to the, all the the most. They currently have [---------] followers and [---] posts still getting attention that total [-------] engagements in the last [--] hours.

### Engagements: [-------] [#](/creator/youtube::UC6IxnFzHofFJ5X2PycSMsww/interactions)
![Engagements Line Chart](https://lunarcrush.com/gi/w:600/cr:youtube::UC6IxnFzHofFJ5X2PycSMsww/c:line/m:interactions.svg)

- [--] Week [---------] +21%
- [--] Month [---------] -41%
- [--] Months [----------] +20%
- [--] Year [----------] +36%

### Mentions: [---] [#](/creator/youtube::UC6IxnFzHofFJ5X2PycSMsww/posts_active)
![Mentions Line Chart](https://lunarcrush.com/gi/w:600/cr:youtube::UC6IxnFzHofFJ5X2PycSMsww/c:line/m:posts_active.svg)

- [--] Week [--] +21%
- [--] Month [--] +30%
- [--] Months [--] +63%
- [--] Year [--] +171%

### Followers: [---------] [#](/creator/youtube::UC6IxnFzHofFJ5X2PycSMsww/followers)
![Followers Line Chart](https://lunarcrush.com/gi/w:600/cr:youtube::UC6IxnFzHofFJ5X2PycSMsww/c:line/m:followers.svg)

- [--] Week [---------] no change
- [--] Month [---------] +1.60%
- [--] Months [---------] +15%
- [--] Year [---------] +46%

### CreatorRank: [-------] [#](/creator/youtube::UC6IxnFzHofFJ5X2PycSMsww/influencer_rank)
![CreatorRank Line Chart](https://lunarcrush.com/gi/w:600/cr:youtube::UC6IxnFzHofFJ5X2PycSMsww/c:line/m:influencer_rank.svg)

### Social Influence

**Social category influence**
[finance](/list/finance)  [countries](/list/countries)  [travel destinations](/list/travel-destinations) 

**Social topic influence**
[if you](/topic/if-you) #1912, [earth](/topic/earth) #953, [to the](/topic/to-the), [all the](/topic/all-the) #3104, [in the](/topic/in-the), [sun](/topic/sun) #782, [light](/topic/light) #2141, [could you](/topic/could-you), [can you](/topic/can-you) #1506, [for the](/topic/for-the)

**Top accounts mentioned or mentioned by**
[@tfolsenuclear](/creator/undefined) [@poftwente](/creator/undefined)
### Top Social Posts
Top posts by engagements in the last [--] hours

"What if a glass of water were LITERALLY half empty Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ What if a glass of water was all of a sudden literally half empty The pessimist is probably more right about how it would turn out than the optimist. Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video Editing Ever Salazar Chief Chaos Controller Know Art Studios Music & Sound Effects What If The Video Series is the official adaptation of"  
[YouTube Link](https://youtube.com/watch?v=0EytSWiKrFg)  2024-09-24T16:00Z 1.3M followers, 3.8M engagements


"What if ALL the suns power was focused in one place Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ This question comes from Max who asks: What if all of the sun's output of visible light were bundled up into a laser-like beam that had a diameter of around one meter once it reached Earth Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video Editing Ever Salazar Chief Chaos Controller Know Art Studios Music & Sound Effects What If The"  
[YouTube Link](https://youtube.com/watch?v=qu8nx1qUwEU)  2025-11-11T19:39Z 1.3M followers, 1.3M engagements


"What if you printed all of Wikipedia Printing Wikipedia is pretty easy. Keeping up with the edits is the problem.* Citation needed [----] xkcd inc"  
[YouTube Link](https://youtube.com/watch?v=WQTNLuhfkwk)  2026-01-27T19:40Z 1.3M followers, 735.9K engagements


"What if Earth grew 1cm every second Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ How long would it take for people to notice their weight gain if the mean radius of the world increased by [--] cm every second (Assuming the average composition of rock were maintained) IMPORTANT NOTE ******************* We would like to apologize for making two mistakes in this video - thanks to viewers for pointing them out 1) Silly error: after the Chandrasekhar limit the Earth would first become a neutron star."  
[YouTube Link](https://youtube.com/watch?v=-1-ldW4kpLM)  2024-10-15T16:00Z 1.3M followers, 4.8M engagements


"Can you power your computer by typing Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ This question comes from Nicolas who asks: as a writer I'm wondering what would be the cumulative energy of the hundreds of thousands of keystrokes required to write a novel Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video Editing Ever Salazar Chief Chaos Controller Know Art Studios Music & Sound Effects What If The Video Series is the official"  
[YouTube Link](https://youtube.com/watch?v=0L44GEJ5pLE)  2025-12-02T17:00Z 1.3M followers, 944.1K engagements


"What would happen to the population if the Earth suddenly stopped spinning Bonus points if you are watching this in the underground [----] xkcd inc"  
[YouTube Link](https://youtube.com/watch?v=19gun1mffWs)  2025-10-07T17:00Z 1.3M followers, 2M engagements


"What if we teleported the oceans to Mars What have we got against Curiosity Well we're working for the Cat. [----] xkcd inc"  
[YouTube Link](https://youtube.com/watch?v=2p305nzcVQE)  2025-12-23T18:00Z 1.3M followers, 2M engagements


"What if you threw a baseball at nearly light speed Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ What would happen if you tried to hit a baseball pitched at 90% the speed of light Randall Munroe is the author of the New York Times bestsellers What If [--] How To What If and Thing Explainer; the science question-and-answer blog What If; and the popular web comic xkcd (https://xkcd.com). A former NASA roboticist he left the agency in [----] to draw comics on the internet full time. Henry Reich is the"  
[YouTube Link](https://youtube.com/watch?v=3EI08o-IGYk)  2024-02-06T17:00Z 1.3M followers, 3.1M engagements


"Circumference pop quiz The math checks out C = 2r if you increase the radius by one the Circumference increases by 2"  
[YouTube Link](https://youtube.com/watch?v=5k8ciEx__5w)  2025-08-05T17:00Z 1.3M followers, 629K engagements


"If all humans died when would the last light go out Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ If every human somehow simply disappeared from the face of the earth how long would it be before the last artificial light source would go out Randall Munroe is the author of the New York Times bestsellers What If [--] How To What If and Thing Explainer; the science question-and-answer blog What If; and the popular web comic xkcd (https://xkcd.com). A former NASA roboticist he left the agency in 2006"  
[YouTube Link](https://youtube.com/watch?v=8fADp43wJwU)  2024-05-28T18:19Z 1.3M followers, 8.7M engagements


"What if you swam in a nuclear storage pool Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ What if I took a swim in a typical spent nuclear fuel pool Would I need to dive to actually experience a fatal amount of radiation How long could I safely stay at the surface Randall Munroe is the author of the New York Times bestsellers What If [--] How To What If and Thing Explainer; the science question-and-answer blog What If; and the popular web comic xkcd (https://xkcd.com). A former NASA roboticist he"  
[YouTube Link](https://youtube.com/watch?v=EFRUL7vKdU8)  2024-04-02T16:00Z 1.3M followers, 2.9M engagements


"What would happen to the Earth if it suddenly stopped spinning The oceans would not be nice to swim in when the Earth stops spinning. I wouldn't recommend swimming in the middle of the ocean any other time either. [----] xkcd inc"  
[YouTube Link](https://youtube.com/watch?v=ERieN5pee7A)  2025-10-14T18:00Z 1.3M followers, 243.7K engagements


"Is there such a thing as a magnitude [--] earthquake I regularly cause magnitude negative three earthquakes. [----] xkcd inc"  
[YouTube Link](https://youtube.com/watch?v=FKXVs4UteSc)  2025-07-01T17:00Z 1.3M followers, 8.1M engagements


"What if we teleported the oceans to Mars Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ Suppose you did drain earths oceans and dumped the water on top of the Curiosity rover how would Mars change as the water accumulated Watch the video where we opened a portal at the bottom of the Mariana Trench and we let the oceans drain out: https://www.youtube.com/watchv=Jpy55EgMQgY Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video Editing Ever"  
[YouTube Link](https://youtube.com/watch?v=FkUNHhVbQ1Q)  2024-08-13T16:00Z 1.3M followers, 2.4M engagements


"What if everyone on Earth was in the same place and jumped at the same time The Earths rotation and orbit would be completely unaffected. But Rhode Island would never be the same again. [----] xkcd inc"  
[YouTube Link](https://youtube.com/watch?v=Ny9m2l6h478)  2025-11-25T18:00Z 1.3M followers, 1.9M engagements


"Could the Hubble take a photo of you Technically the Hubble could take a picture of anything. It wouldn't always be a useful photo though. [----] xkcd inc"  
[YouTube Link](https://youtube.com/watch?v=TgA0lXEW7dw)  2025-09-16T17:00Z 1.3M followers, 897.4K engagements


"What if the sun suddenly went out Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ What would happen to the Earth if the Sun suddenly switched off is probably the single most popular question submitted to What If. Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video Editing Ever Salazar Chief Chaos Controller Know Art Studios Music & Sound Effects What If The Video Series is the official adaptation of the What If books by Randall Munroe"  
[YouTube Link](https://youtube.com/watch?v=X7sbn9LMZOg)  2025-04-15T19:19Z 1.3M followers, 1.3M engagements


"What if the wise men kept walking after Jesuss birth Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ This question comes from N. Murdoch who was thinking about how the three wise men in the Christmas story followed a star to Bethlehem where they found the baby Jesus. The question is: what if you did walk towards a known star at a fixed speed What path would you trace on the Earth Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video"  
[YouTube Link](https://youtube.com/watch?v=YL2VNtus4xk)  2025-03-04T17:00Z 1.3M followers, 1M engagements


"How fast could a human accellerate (while staying alive) There's definitely a benefit to the 'eyeballs out' terminology fighter pilots use. [----] xkcd inc"  
[YouTube Link](https://youtube.com/watch?v=eSPcp-tfGbA)  2025-08-26T19:00Z 1.3M followers, 2.1M engagements


"How detailed would the Hubbles images be if it looked at Earth Pointing a Hubble-type telescope at the Earths surface is not only possibleits what the US government actually does. [----] xkcd inc"  
[YouTube Link](https://youtube.com/watch?v=i6e4NnFnQi0)  2025-09-23T17:15Z 1.3M followers, 1M engagements


"Could this be the last surviving human light source If all the humans suddenly disappeared the last surviving human light source might be a solar-powered light in a remote location. [----] xkcd inc"  
[YouTube Link](https://youtube.com/watch?v=kNry0bf7eC0)  2025-07-29T17:01Z 1.3M followers, 2.4M engagements


"Petition to send a swimming pool to the moon I just totally nerd-sniped myself trying to figure out whether it'd be possible to do a Slip 'N Slide loop-the-loop on the Moon"  
[YouTube Link](https://youtube.com/watch?v=mtTbwHzhUiM)  2025-08-12T17:01Z 1.3M followers, 511.6K engagements


"How fast could a vehicle go around a track - but the racer does not have to survive. Oopswe've accidentally built a particle accelerator. [----] xkcd inc"  
[YouTube Link](https://youtube.com/watch?v=rgUfcFAPicY)  2025-09-02T17:15Z 1.3M followers, 403.5K engagements


"Why Space Is Actually Warm Space seems cold but it's actually warm The particles in space can reach temperatures of thousands of degrees - but that doesn't make space feel warm. The practical reason space feels warm is that it's really empty You don't lose heat by conduction or convection only radiation. Which isnt a very effective way to cool down. [----] xkcd inc"  
[YouTube Link](https://youtube.com/watch?v=sFTRRdHqZIQ)  2025-07-22T17:01Z 1.3M followers, 789.6K engagements


"What if you literally had all the money in the world Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ This question comes from Daniel who notes that people sometimes say If I had all the money in the world in order to discuss what they would do if they had no financial constraints. Of course its natural to then ask: what would happen if you literally had all of the world's money Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video Editing"  
[YouTube Link](https://youtube.com/watch?v=saj7b5C6TCM)  2025-05-06T17:01Z 1.3M followers, 1.5M engagements


"How high could the magnitude of Earthquakes go While [--] isn't the top of the scale it might as well be. [----] xkcd inc"  
[YouTube Link](https://youtube.com/watch?v=wBLVmEZV2Oc)  2025-06-24T16:01Z 1.3M followers, 3.7M engagements


"Could you use a laser as an umbrella Why would that sound reasonable Why would you say that [----] xkcd inc"  
[YouTube Link](https://youtube.com/watch?v=xA9aqKGBeOs)  2025-11-04T19:01Z 1.3M followers, 972.5K engagements


"What if we aimed the Hubble Telescope at Earth Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ If you pointed the Hubble telescope at the Earth what could you see Could you read over your neighbors shoulder Or would it all just be a big blur Randall Munroe is the author of the New York Times bestsellers What If [--] How To What If and Thing Explainer; the science question-and-answer blog What If; and the popular web comic xkcd (https://xkcd.com). A former NASA roboticist he left the agency in 2006"  
[YouTube Link](https://youtube.com/watch?v=2LSyizrk8-0)  2023-11-29T18:00Z 1.3M followers, 2.9M engagements


"What if the Moon were made entirely of electrons Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ This question comes from Noah who asks: what if the Earth were made entirely of protons and the Moon were made entirely of electrons Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video Editing Ever Salazar Chief Chaos Controller Know Art Studios Music & Sound Effects What If The Video Series is the official adaptation of the What If books by"  
[YouTube Link](https://youtube.com/watch?v=DiWFXv9N0Vs)  2025-09-09T16:00Z 1.3M followers, 1M engagements


"Would a Submarine Work as a Spaceship How long could a nuclear submarine last in orbit Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ Randall Munroe is the author of the New York Times bestsellers What If [--] How To What If and Thing Explainer; the science question-and-answer blog What If; and the popular web comic xkcd (https://xkcd.com). A former NASA roboticist he left the agency in [----] to draw comics on the internet full time. Henry Reich is the creator of MinutePhysics and executive"  
[YouTube Link](https://youtube.com/watch?v=EsUBRd1O2dU)  2024-03-05T17:00Z 1.3M followers, 4.9M engagements


"What if you made a jetpack using rifles Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ This question comes from Rob who asks: is it possible to build a jetpack using downward firing rifles I was sort of surprised to find that the answer was yes Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video Editing Ever Salazar Chief Chaos Controller Know Art Studios Music & Sound Effects What If The Video Series is the official adaptation of the"  
[YouTube Link](https://youtube.com/watch?v=IdlQsjq5vKo)  2026-02-10T19:41Z 1.3M followers, 958.7K engagements


"What if NASCAR had no rules Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ What if you ignored all the rules of car racing and had a contest which was simply to get a human being around a track [---] times as fast as possible. What strategy would win Lets say the racer has to survive. Randall Munroe is the author of the New York Times bestsellers What If [--] How To What If and Thing Explainer; the science question-and-answer blog What If; and the popular web comic xkcd (https://xkcd.com). A former"  
[YouTube Link](https://youtube.com/watch?v=JcXpCyPc2Xw)  2023-12-19T17:00Z 1.3M followers, 3.1M engagements


"What if you drained the oceans Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ How quickly would the oceans drain if a circular portal [--] meters in diameter appeared at the bottom of Challenger Deep the deepest spot in the ocean How would the Earth change as the water is being drained Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video Editing Ever Salazar Chief Chaos Controller Know Art Studios Music & Sound Effects What If The Video"  
[YouTube Link](https://youtube.com/watch?v=Jpy55EgMQgY)  2024-06-18T16:00Z 1.3M followers, 3.1M engagements


"What if everyone pointed a laser at the moon Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ If every person on Earth aimed a laser pointer at the Moon at the same time would it change color Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video Editing Ever Salazar Chief Chaos Controller Know Art Studios Music & Sound Effects What If The Video Series is the official adaptation of the What If books by Randall Munroe and is produced by"  
[YouTube Link](https://youtube.com/watch?v=JqFSGkFPipM)  2024-11-05T17:51Z 1.3M followers, 5.3M engagements


"Could we survive eating only humans Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ This question comes from Quinn who asks: How long could the human race survive on only cannibalism Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video Editing Ever Salazar Chief Chaos Controller Know Art Studios Music & Sound Effects What If The Video Series is the official adaptation of the What If books by Randall Munroe and is produced by Neptune"  
[YouTube Link](https://youtube.com/watch?v=PUtI3xoaHx0)  2025-09-30T16:00Z 1.3M followers, 1.1M engagements


"What if you tried to print Wikipedia Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ If you had a printed version of the whole of Wikipedia how many printers would you need in order to keep up with the changes made to the live version Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video Editing Ever Salazar Chief Chaos Controller Know Art Studios Music & Sound Effects What If The Video Series is the official adaptation of the What If"  
[YouTube Link](https://youtube.com/watch?v=RgBYohJ7mIk)  2024-07-09T16:00Z 1.3M followers, 2.9M engagements


"Can you drive west to lengthen the sunset Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ This question comes from Michael who asks: whats the longest possible sunset you can experience while driving assuming youre obeying the speed limit and driving on paved roads To start we have to define what we mean by sunset". Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video Editing Ever Salazar Chief Chaos Controller Know Art Studios Music &"  
[YouTube Link](https://youtube.com/watch?v=U8F7UNK9jco)  2025-10-21T16:07Z 1.3M followers, 1.9M engagements


"What if the moon turned into a black hole Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ This question comes from Matt who asks: what would happen if the Moon were replaced with an equivalently-massed black hole And what would a lunar ("holar") eclipse look like Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video Editing Ever Salazar Chief Chaos Controller Know Art Studios Music & Sound Effects What If The Video Series is the official"  
[YouTube Link](https://youtube.com/watch?v=UQgw50GQu1A)  2025-07-08T16:00Z 1.3M followers, 1.4M engagements


"Could you survive a nanosecond on the Sun Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ What would happen if you spent a nanosecond on the surface of the sun Would it warm you up burn you to a cinder or do nothing at all Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video Editing Ever Salazar Chief Chaos Controller Know Art Studios Music & Sound Effects What If The Video Series is the official adaptation of the What If books by"  
[YouTube Link](https://youtube.com/watch?v=UXA-Af-JeCE)  2024-09-03T15:58Z 1.3M followers, 7.6M engagements


"What if you tried to hit a baseball pitched at 90% the speed of light A careful reading of official Major League Baseball Rule 6.08(b) suggests that in this situation the batter would be considered "hit by pitch" and would be eligible to advance to first base. [----] xkcd inc"  
[YouTube Link](https://youtube.com/watch?v=Uj10jGq2O8o)  2025-10-28T19:31Z 1.3M followers, 2.8M engagements


"What if the Earth rotated [--] degrees Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ What would the world be like if the land masses were spread out the same way as now but rotated by [--] degrees Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video Editing Ever Salazar Chief Chaos Controller Know Art Studios Music & Sound Effects What If The Video Series is the official adaptation of the What If books by Randall Munroe and is produced by"  
[YouTube Link](https://youtube.com/watch?v=WH4g1ptJ-70)  2025-04-01T16:00Z 1.3M followers, 2.8M engagements


"What if you used a flamethrower as a snowblower Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ This question comes from Matt who asks: I've long thought about putting a flamethrower on the front of a car to melt snow and ice before you drive across it. Now I've realized that a flamethrower is impractical but what about a high-powered microwave emitter Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video Editing Ever Salazar Chief Chaos"  
[YouTube Link](https://youtube.com/watch?v=WYf9-xfm6t8)  2025-05-27T17:00Z 1.3M followers, 1.6M engagements


"What if you built a billion-story building Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ This question came from Keira who at age four and a half wanted to build a billion-story building. Actually it came from Keiras dad who wanted to help Keira appreciate how big and difficult such a project would be. Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video Editing Ever Salazar Chief Chaos Controller Know Art Studios Music & Sound Effects"  
[YouTube Link](https://youtube.com/watch?v=Z_xJ40QXu7Q)  2025-02-11T15:07Z 1.3M followers, 2.2M engagements


"Could We Harvest Power From Lightning A typical lightning strike delivers enough energy to power a residential house for about two days. This sounds like a lot but the energy from the sun outweighs the power supplied by lightning by a factor of a million. That's another win for solar panels. [----] xkcd inc"  
[YouTube Link](https://youtube.com/watch?v=_efsqO-4OoQ)  2025-07-15T17:00Z 1.3M followers, 1.6M engagements


"What if we put a pool on the moon Get a copy of the 10th Anniversary edition of What If at: https://xkcd.com/what-if/ More serious answers to absurd questions at: https://what-if.xkcd.com/ What if there were a lake on the Moon What would it be like to swim in it Presuming that its sheltered in a regular atmosphere in some giant dome or something. Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video Editing Ever Salazar Chief Chaos Controller Know Art Studios Music & Sound Effects What If The Video Series is the official adaptation of"  
[YouTube Link](https://youtube.com/watch?v=aIIBBj6KR-Y)  2024-12-24T17:00Z 1.3M followers, 1.7M engagements


"What if you drained the oceans It would be great news for the Netherlands [----] xkcd inc"  
[YouTube Link](https://youtube.com/watch?v=aMshLs0YCTQ)  2025-12-16T19:26Z 1.3M followers, 4.8M engagements


"What would a magnitude [--] earthquake be like Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ Since we usually hear about earthquakes with ratings somewhere between [--] and [--] a lot of people probably think of [--] as the top of the scale and [--] as the bottom. In fact there is no top or bottom to the scale Randall Munroe is the author of the New York Times bestsellers What If [--] How To What If and Thing Explainer; the science question-and-answer blog What If; and the popular web comic xkcd"  
[YouTube Link](https://youtube.com/watch?v=e3uk7jU3RHo)  2023-12-05T17:00Z 1.3M followers, 7.1M engagements


"What if all the lightning on Earth struck the same place at once Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ If all the lightning that occurs worldwide on any given day all struck the same place at once what would happen to that place Randall Munroe is the author of the New York Times bestsellers What If [--] How To What If and Thing Explainer; the science question-and-answer blog What If; and the popular web comic xkcd (https://xkcd.com). A former NASA roboticist he left the agency in [----] to"  
[YouTube Link](https://youtube.com/watch?v=fs28lEq9smw)  2024-05-07T16:00Z 1.3M followers, 2.8M engagements


"What if Earth suddenly stopped spinning Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ What would happen if the Earth and all terrestrial objects suddenly stopped spinning but the atmosphere retained its velocity Randall Munroe is the author of the New York Times bestsellers What If [--] How To What If and Thing Explainer; the science question-and-answer blog What If; and the popular web comic xkcd (https://xkcd.com). A former NASA roboticist he left the agency in [----] to draw comics on the"  
[YouTube Link](https://youtube.com/watch?v=gp5G1QG6cXc)  2024-01-09T17:00Z 1.3M followers, 3.1M engagements


"But what if we tried MORE power Get a copy of the 10th Anniversary edition of What If at: https://xkcd.com/what-if/ More serious answers to absurd questions at: https://what-if.xkcd.com/ What if we tried a laser array with even MORE power Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video Editing Ever Salazar Chief Chaos Controller Know Art Studios Music & Sound Effects What If The Video Series is the official adaptation of the What If books by Randall Munroe and is produced by Neptune Studios LLC. Randall Munroe is the author of"  
[YouTube Link](https://youtube.com/watch?v=jgafb8G7i4o)  2024-12-03T18:03Z 1.3M followers, 1.8M engagements


"What if you had a mole of moles Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ This question comes from Sean who asks: what would happen if you were to gather a mole (the unit of measurement) of moles (the small furry critter) in one place Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video Editing Ever Salazar Chief Chaos Controller Know Art Studios Music & Sound Effects What If The Video Series is the official adaptation of the What"  
[YouTube Link](https://youtube.com/watch?v=lLlwvmu1ZeA)  2025-08-19T16:01Z 1.3M followers, 1.5M engagements


"What if you teleported to the Sun I'm not sure sunscreen would make a difference. [----] xkcd inc"  
[YouTube Link](https://youtube.com/watch?v=m1aMh7z8Y7I)  2026-02-03T19:29Z 1.3M followers, 799.4K engagements


"What if everyone jumped at once Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ What would happen if everyone on earth stood as close to each other as they could jumped and landed on the ground all at the same instant Randall Munroe is the author of the New York Times bestsellers What If [--] How To What If and Thing Explainer; the science question-and-answer blog What If; and the popular web comic xkcd (https://xkcd.com). A former NASA roboticist he left the agency in [----] to draw comics on the"  
[YouTube Link](https://youtube.com/watch?v=p2M8Y0z9Rl0)  2024-04-16T16:00Z 1.3M followers, 2.4M engagements


"What if you funneled Niagara Falls through a straw Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ This question comes from David who asks: what would happen if one tried to funnel Niagara Falls through a straw Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video Editing Ever Salazar Chief Chaos Controller Know Art Studios Music & Sound Effects What If The Video Series is the official adaptation of the What If books by Randall Munroe and"  
[YouTube Link](https://youtube.com/watch?v=pfbzrrcQZjs)  2025-06-17T17:16Z 1.3M followers, 4.7M engagements


"How long would you survive with no DNA Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ This question comes from Nina who asks: if someone's DNA suddenly vanished how long would that person last Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video Editing Ever Salazar Chief Chaos Controller Know Art Studios Music & Sound Effects What If The Video Series is the official adaptation of the What If books by Randall Munroe and is produced by"  
[YouTube Link](https://youtube.com/watch?v=s3oLIDaElaE)  2026-01-20T17:36Z 1.3M followers, 1.8M engagements


"Could you swim in a spent nuclear fuel pool Disclaimer: I am a cartoonist. If you follow my advice on safety around nuclear materials you probably deserve whatever happens to you. [----] xkcd inc"  
[YouTube Link](https://youtube.com/watch?v=vBfR2Zb0dkc)  2025-11-18T19:24Z 1.3M followers, 1M engagements


"Could you make an umbrella out of lasers Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ Stopping rain from falling on something with an umbrella is boring. What if you tried to stop rain with a laser that targeted and vaporized each incoming droplet before it could come within ten feet of the ground Randall Munroe is the author of the New York Times bestsellers What If [--] How To What If and Thing Explainer; the science question-and-answer blog What If; and the popular web comic xkcd"  
[YouTube Link](https://youtube.com/watch?v=zgBTwtg7H8E)  2024-02-20T17:00Z 1.3M followers, 1.8M engagements


"What if you made a jetpack using rifles Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ This question comes from Rob who asks: is it possible to build a jetpack using downward firing rifles I was sort of surprised to find that the answer was yes Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video Editing Ever Salazar Chief Chaos Controller Know Art Studios Music & Sound Effects What If The Video Series is the official adaptation of the"  
[YouTube Link](https://youtube.com/watch?v=IdlQsjq5vKo)  2026-02-10T19:41Z 1.3M followers, 958.7K engagements


"What if you teleported to the Sun I'm not sure sunscreen would make a difference. [----] xkcd inc"  
[YouTube Link](https://youtube.com/watch?v=m1aMh7z8Y7I)  2026-02-03T19:29Z 1.3M followers, 799.4K engagements


"What if you printed all of Wikipedia Printing Wikipedia is pretty easy. Keeping up with the edits is the problem.* Citation needed [----] xkcd inc"  
[YouTube Link](https://youtube.com/watch?v=WQTNLuhfkwk)  2026-01-27T19:40Z 1.3M followers, 735.9K engagements


"How long would you survive with no DNA Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ This question comes from Nina who asks: if someone's DNA suddenly vanished how long would that person last Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video Editing Ever Salazar Chief Chaos Controller Know Art Studios Music & Sound Effects What If The Video Series is the official adaptation of the What If books by Randall Munroe and is produced by"  
[YouTube Link](https://youtube.com/watch?v=s3oLIDaElaE)  2026-01-20T17:36Z 1.3M followers, 1.8M engagements


"What if we teleported the oceans to Mars What have we got against Curiosity Well we're working for the Cat. [----] xkcd inc"  
[YouTube Link](https://youtube.com/watch?v=2p305nzcVQE)  2025-12-23T18:00Z 1.3M followers, 2M engagements


"What if you drained the oceans It would be great news for the Netherlands [----] xkcd inc"  
[YouTube Link](https://youtube.com/watch?v=aMshLs0YCTQ)  2025-12-16T19:26Z 1.3M followers, 4.8M engagements


"Can you power your computer by typing Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ This question comes from Nicolas who asks: as a writer I'm wondering what would be the cumulative energy of the hundreds of thousands of keystrokes required to write a novel Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video Editing Ever Salazar Chief Chaos Controller Know Art Studios Music & Sound Effects What If The Video Series is the official"  
[YouTube Link](https://youtube.com/watch?v=0L44GEJ5pLE)  2025-12-02T17:00Z 1.3M followers, 944.1K engagements


"What if everyone on Earth was in the same place and jumped at the same time The Earths rotation and orbit would be completely unaffected. But Rhode Island would never be the same again. [----] xkcd inc"  
[YouTube Link](https://youtube.com/watch?v=Ny9m2l6h478)  2025-11-25T18:00Z 1.3M followers, 1.9M engagements


"Could you swim in a spent nuclear fuel pool Disclaimer: I am a cartoonist. If you follow my advice on safety around nuclear materials you probably deserve whatever happens to you. [----] xkcd inc"  
[YouTube Link](https://youtube.com/watch?v=vBfR2Zb0dkc)  2025-11-18T19:24Z 1.3M followers, 1M engagements


"What if ALL the suns power was focused in one place Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ This question comes from Max who asks: What if all of the sun's output of visible light were bundled up into a laser-like beam that had a diameter of around one meter once it reached Earth Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video Editing Ever Salazar Chief Chaos Controller Know Art Studios Music & Sound Effects What If The"  
[YouTube Link](https://youtube.com/watch?v=qu8nx1qUwEU)  2025-11-11T19:39Z 1.3M followers, 1.3M engagements


"Could you use a laser as an umbrella Why would that sound reasonable Why would you say that [----] xkcd inc"  
[YouTube Link](https://youtube.com/watch?v=xA9aqKGBeOs)  2025-11-04T19:01Z 1.3M followers, 972.5K engagements


"What if you tried to hit a baseball pitched at 90% the speed of light A careful reading of official Major League Baseball Rule 6.08(b) suggests that in this situation the batter would be considered "hit by pitch" and would be eligible to advance to first base. [----] xkcd inc"  
[YouTube Link](https://youtube.com/watch?v=Uj10jGq2O8o)  2025-10-28T19:31Z 1.3M followers, 2.8M engagements


"Can you drive west to lengthen the sunset Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ This question comes from Michael who asks: whats the longest possible sunset you can experience while driving assuming youre obeying the speed limit and driving on paved roads To start we have to define what we mean by sunset". Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video Editing Ever Salazar Chief Chaos Controller Know Art Studios Music &"  
[YouTube Link](https://youtube.com/watch?v=U8F7UNK9jco)  2025-10-21T16:07Z 1.3M followers, 1.9M engagements


"What would happen to the Earth if it suddenly stopped spinning The oceans would not be nice to swim in when the Earth stops spinning. I wouldn't recommend swimming in the middle of the ocean any other time either. [----] xkcd inc"  
[YouTube Link](https://youtube.com/watch?v=ERieN5pee7A)  2025-10-14T18:00Z 1.3M followers, 243.7K engagements


"What would happen to the population if the Earth suddenly stopped spinning Bonus points if you are watching this in the underground [----] xkcd inc"  
[YouTube Link](https://youtube.com/watch?v=19gun1mffWs)  2025-10-07T17:00Z 1.3M followers, 2M engagements


"Could we survive eating only humans Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ This question comes from Quinn who asks: How long could the human race survive on only cannibalism Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video Editing Ever Salazar Chief Chaos Controller Know Art Studios Music & Sound Effects What If The Video Series is the official adaptation of the What If books by Randall Munroe and is produced by Neptune"  
[YouTube Link](https://youtube.com/watch?v=PUtI3xoaHx0)  2025-09-30T16:00Z 1.3M followers, 1.1M engagements


"How detailed would the Hubbles images be if it looked at Earth Pointing a Hubble-type telescope at the Earths surface is not only possibleits what the US government actually does. [----] xkcd inc"  
[YouTube Link](https://youtube.com/watch?v=i6e4NnFnQi0)  2025-09-23T17:15Z 1.3M followers, 1M engagements


"Could the Hubble take a photo of you Technically the Hubble could take a picture of anything. It wouldn't always be a useful photo though. [----] xkcd inc"  
[YouTube Link](https://youtube.com/watch?v=TgA0lXEW7dw)  2025-09-16T17:00Z 1.3M followers, 897.4K engagements


"What if the Moon were made entirely of electrons Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ This question comes from Noah who asks: what if the Earth were made entirely of protons and the Moon were made entirely of electrons Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video Editing Ever Salazar Chief Chaos Controller Know Art Studios Music & Sound Effects What If The Video Series is the official adaptation of the What If books by"  
[YouTube Link](https://youtube.com/watch?v=DiWFXv9N0Vs)  2025-09-09T16:00Z 1.3M followers, 1M engagements


"How fast could a vehicle go around a track - but the racer does not have to survive. Oopswe've accidentally built a particle accelerator. [----] xkcd inc"  
[YouTube Link](https://youtube.com/watch?v=rgUfcFAPicY)  2025-09-02T17:15Z 1.3M followers, 403.5K engagements


"How fast could a human accellerate (while staying alive) There's definitely a benefit to the 'eyeballs out' terminology fighter pilots use. [----] xkcd inc"  
[YouTube Link](https://youtube.com/watch?v=eSPcp-tfGbA)  2025-08-26T19:00Z 1.3M followers, 2.1M engagements


"What if you had a mole of moles Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ This question comes from Sean who asks: what would happen if you were to gather a mole (the unit of measurement) of moles (the small furry critter) in one place Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video Editing Ever Salazar Chief Chaos Controller Know Art Studios Music & Sound Effects What If The Video Series is the official adaptation of the What"  
[YouTube Link](https://youtube.com/watch?v=lLlwvmu1ZeA)  2025-08-19T16:01Z 1.3M followers, 1.5M engagements


"Petition to send a swimming pool to the moon I just totally nerd-sniped myself trying to figure out whether it'd be possible to do a Slip 'N Slide loop-the-loop on the Moon"  
[YouTube Link](https://youtube.com/watch?v=mtTbwHzhUiM)  2025-08-12T17:01Z 1.3M followers, 511.6K engagements


"Circumference pop quiz The math checks out C = 2r if you increase the radius by one the Circumference increases by 2"  
[YouTube Link](https://youtube.com/watch?v=5k8ciEx__5w)  2025-08-05T17:00Z 1.3M followers, 629K engagements


"Could this be the last surviving human light source If all the humans suddenly disappeared the last surviving human light source might be a solar-powered light in a remote location. [----] xkcd inc"  
[YouTube Link](https://youtube.com/watch?v=kNry0bf7eC0)  2025-07-29T17:01Z 1.3M followers, 2.4M engagements


"Why Space Is Actually Warm Space seems cold but it's actually warm The particles in space can reach temperatures of thousands of degrees - but that doesn't make space feel warm. The practical reason space feels warm is that it's really empty You don't lose heat by conduction or convection only radiation. Which isnt a very effective way to cool down. [----] xkcd inc"  
[YouTube Link](https://youtube.com/watch?v=sFTRRdHqZIQ)  2025-07-22T17:01Z 1.3M followers, 789.6K engagements


"Could We Harvest Power From Lightning A typical lightning strike delivers enough energy to power a residential house for about two days. This sounds like a lot but the energy from the sun outweighs the power supplied by lightning by a factor of a million. That's another win for solar panels. [----] xkcd inc"  
[YouTube Link](https://youtube.com/watch?v=_efsqO-4OoQ)  2025-07-15T17:00Z 1.3M followers, 1.6M engagements


"What if the moon turned into a black hole Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ This question comes from Matt who asks: what would happen if the Moon were replaced with an equivalently-massed black hole And what would a lunar ("holar") eclipse look like Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video Editing Ever Salazar Chief Chaos Controller Know Art Studios Music & Sound Effects What If The Video Series is the official"  
[YouTube Link](https://youtube.com/watch?v=UQgw50GQu1A)  2025-07-08T16:00Z 1.3M followers, 1.4M engagements


"Is there such a thing as a magnitude [--] earthquake I regularly cause magnitude negative three earthquakes. [----] xkcd inc"  
[YouTube Link](https://youtube.com/watch?v=FKXVs4UteSc)  2025-07-01T17:00Z 1.3M followers, 8.1M engagements


"How high could the magnitude of Earthquakes go While [--] isn't the top of the scale it might as well be. [----] xkcd inc"  
[YouTube Link](https://youtube.com/watch?v=wBLVmEZV2Oc)  2025-06-24T16:01Z 1.3M followers, 3.7M engagements


"What if you funneled Niagara Falls through a straw Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ This question comes from David who asks: what would happen if one tried to funnel Niagara Falls through a straw Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video Editing Ever Salazar Chief Chaos Controller Know Art Studios Music & Sound Effects What If The Video Series is the official adaptation of the What If books by Randall Munroe and"  
[YouTube Link](https://youtube.com/watch?v=pfbzrrcQZjs)  2025-06-17T17:16Z 1.3M followers, 4.7M engagements


"What if you used a flamethrower as a snowblower Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ This question comes from Matt who asks: I've long thought about putting a flamethrower on the front of a car to melt snow and ice before you drive across it. Now I've realized that a flamethrower is impractical but what about a high-powered microwave emitter Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video Editing Ever Salazar Chief Chaos"  
[YouTube Link](https://youtube.com/watch?v=WYf9-xfm6t8)  2025-05-27T17:00Z 1.3M followers, 1.6M engagements


"What if you literally had all the money in the world Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ This question comes from Daniel who notes that people sometimes say If I had all the money in the world in order to discuss what they would do if they had no financial constraints. Of course its natural to then ask: what would happen if you literally had all of the world's money Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video Editing"  
[YouTube Link](https://youtube.com/watch?v=saj7b5C6TCM)  2025-05-06T17:01Z 1.3M followers, 1.5M engagements


"What if the sun suddenly went out Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ What would happen to the Earth if the Sun suddenly switched off is probably the single most popular question submitted to What If. Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video Editing Ever Salazar Chief Chaos Controller Know Art Studios Music & Sound Effects What If The Video Series is the official adaptation of the What If books by Randall Munroe"  
[YouTube Link](https://youtube.com/watch?v=X7sbn9LMZOg)  2025-04-15T19:19Z 1.3M followers, 1.3M engagements


"What if the Earth rotated [--] degrees Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ What would the world be like if the land masses were spread out the same way as now but rotated by [--] degrees Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video Editing Ever Salazar Chief Chaos Controller Know Art Studios Music & Sound Effects What If The Video Series is the official adaptation of the What If books by Randall Munroe and is produced by"  
[YouTube Link](https://youtube.com/watch?v=WH4g1ptJ-70)  2025-04-01T16:00Z 1.3M followers, 2.8M engagements


"What if the wise men kept walking after Jesuss birth Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ This question comes from N. Murdoch who was thinking about how the three wise men in the Christmas story followed a star to Bethlehem where they found the baby Jesus. The question is: what if you did walk towards a known star at a fixed speed What path would you trace on the Earth Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video"  
[YouTube Link](https://youtube.com/watch?v=YL2VNtus4xk)  2025-03-04T17:00Z 1.3M followers, 1M engagements


"What if you built a billion-story building Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ This question came from Keira who at age four and a half wanted to build a billion-story building. Actually it came from Keiras dad who wanted to help Keira appreciate how big and difficult such a project would be. Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video Editing Ever Salazar Chief Chaos Controller Know Art Studios Music & Sound Effects"  
[YouTube Link](https://youtube.com/watch?v=Z_xJ40QXu7Q)  2025-02-11T15:07Z 1.3M followers, 2.2M engagements


"What if we put a pool on the moon Get a copy of the 10th Anniversary edition of What If at: https://xkcd.com/what-if/ More serious answers to absurd questions at: https://what-if.xkcd.com/ What if there were a lake on the Moon What would it be like to swim in it Presuming that its sheltered in a regular atmosphere in some giant dome or something. Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video Editing Ever Salazar Chief Chaos Controller Know Art Studios Music & Sound Effects What If The Video Series is the official adaptation of"  
[YouTube Link](https://youtube.com/watch?v=aIIBBj6KR-Y)  2024-12-24T17:00Z 1.3M followers, 1.7M engagements


"But what if we tried MORE power Get a copy of the 10th Anniversary edition of What If at: https://xkcd.com/what-if/ More serious answers to absurd questions at: https://what-if.xkcd.com/ What if we tried a laser array with even MORE power Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video Editing Ever Salazar Chief Chaos Controller Know Art Studios Music & Sound Effects What If The Video Series is the official adaptation of the What If books by Randall Munroe and is produced by Neptune Studios LLC. Randall Munroe is the author of"  
[YouTube Link](https://youtube.com/watch?v=jgafb8G7i4o)  2024-12-03T18:03Z 1.3M followers, 1.8M engagements


"What if everyone pointed a laser at the moon Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ If every person on Earth aimed a laser pointer at the Moon at the same time would it change color Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video Editing Ever Salazar Chief Chaos Controller Know Art Studios Music & Sound Effects What If The Video Series is the official adaptation of the What If books by Randall Munroe and is produced by"  
[YouTube Link](https://youtube.com/watch?v=JqFSGkFPipM)  2024-11-05T17:51Z 1.3M followers, 5.3M engagements


"What if Earth grew 1cm every second Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ How long would it take for people to notice their weight gain if the mean radius of the world increased by [--] cm every second (Assuming the average composition of rock were maintained) IMPORTANT NOTE ******************* We would like to apologize for making two mistakes in this video - thanks to viewers for pointing them out 1) Silly error: after the Chandrasekhar limit the Earth would first become a neutron star."  
[YouTube Link](https://youtube.com/watch?v=-1-ldW4kpLM)  2024-10-15T16:00Z 1.3M followers, 4.8M engagements


"What if a glass of water were LITERALLY half empty Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ What if a glass of water was all of a sudden literally half empty The pessimist is probably more right about how it would turn out than the optimist. Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video Editing Ever Salazar Chief Chaos Controller Know Art Studios Music & Sound Effects What If The Video Series is the official adaptation of"  
[YouTube Link](https://youtube.com/watch?v=0EytSWiKrFg)  2024-09-24T16:00Z 1.3M followers, 3.8M engagements


"Could you survive a nanosecond on the Sun Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ What would happen if you spent a nanosecond on the surface of the sun Would it warm you up burn you to a cinder or do nothing at all Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video Editing Ever Salazar Chief Chaos Controller Know Art Studios Music & Sound Effects What If The Video Series is the official adaptation of the What If books by"  
[YouTube Link](https://youtube.com/watch?v=UXA-Af-JeCE)  2024-09-03T15:58Z 1.3M followers, 7.6M engagements


"What if we teleported the oceans to Mars Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ Suppose you did drain earths oceans and dumped the water on top of the Curiosity rover how would Mars change as the water accumulated Watch the video where we opened a portal at the bottom of the Mariana Trench and we let the oceans drain out: https://www.youtube.com/watchv=Jpy55EgMQgY Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video Editing Ever"  
[YouTube Link](https://youtube.com/watch?v=FkUNHhVbQ1Q)  2024-08-13T16:00Z 1.3M followers, 2.4M engagements


"What if you tried to print Wikipedia Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ If you had a printed version of the whole of Wikipedia how many printers would you need in order to keep up with the changes made to the live version Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video Editing Ever Salazar Chief Chaos Controller Know Art Studios Music & Sound Effects What If The Video Series is the official adaptation of the What If"  
[YouTube Link](https://youtube.com/watch?v=RgBYohJ7mIk)  2024-07-09T16:00Z 1.3M followers, 2.9M engagements


"What if you drained the oceans Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ How quickly would the oceans drain if a circular portal [--] meters in diameter appeared at the bottom of Challenger Deep the deepest spot in the ocean How would the Earth change as the water is being drained Credits ******* Randall Munroe Narrator Henry Reich Writer & Director Lizah van der Aart Illustration and Video Editing Ever Salazar Chief Chaos Controller Know Art Studios Music & Sound Effects What If The Video"  
[YouTube Link](https://youtube.com/watch?v=Jpy55EgMQgY)  2024-06-18T16:00Z 1.3M followers, 3.1M engagements


"If all humans died when would the last light go out Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ If every human somehow simply disappeared from the face of the earth how long would it be before the last artificial light source would go out Randall Munroe is the author of the New York Times bestsellers What If [--] How To What If and Thing Explainer; the science question-and-answer blog What If; and the popular web comic xkcd (https://xkcd.com). A former NASA roboticist he left the agency in 2006"  
[YouTube Link](https://youtube.com/watch?v=8fADp43wJwU)  2024-05-28T18:19Z 1.3M followers, 8.7M engagements


"What if all the lightning on Earth struck the same place at once Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ If all the lightning that occurs worldwide on any given day all struck the same place at once what would happen to that place Randall Munroe is the author of the New York Times bestsellers What If [--] How To What If and Thing Explainer; the science question-and-answer blog What If; and the popular web comic xkcd (https://xkcd.com). A former NASA roboticist he left the agency in [----] to"  
[YouTube Link](https://youtube.com/watch?v=fs28lEq9smw)  2024-05-07T16:00Z 1.3M followers, 2.8M engagements


"What if everyone jumped at once Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ What would happen if everyone on earth stood as close to each other as they could jumped and landed on the ground all at the same instant Randall Munroe is the author of the New York Times bestsellers What If [--] How To What If and Thing Explainer; the science question-and-answer blog What If; and the popular web comic xkcd (https://xkcd.com). A former NASA roboticist he left the agency in [----] to draw comics on the"  
[YouTube Link](https://youtube.com/watch?v=p2M8Y0z9Rl0)  2024-04-16T16:00Z 1.3M followers, 2.4M engagements


"What if you swam in a nuclear storage pool Get a copy of What If [--] and Randalls other books at: https://xkcd.com/books More serious answers to absurd questions at: https://what-if.xkcd.com/ What if I took a swim in a typical spent nuclear fuel pool Would I need to dive to actually experience a fatal amount of radiation How long could I safely stay at the surface Randall Munroe is the author of the New York Times bestsellers What If [--] How To What If and Thing Explainer; the science question-and-answer blog What If; and the popular web comic xkcd (https://xkcd.com). A former NASA roboticist he"  
[YouTube Link](https://youtube.com/watch?v=EFRUL7vKdU8)  2024-04-02T16:00Z 1.3M followers, 2.9M engagements

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