@justinskycak Avatar @justinskycak Justin Skycak

Justin Skycak posts on X about math, in the, if you, the most the most. They currently have [------] followers and [---] posts still getting attention that total [-------] engagements in the last [--] hours.

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Social Influence

Social category influence finance 9.17% countries 5.5% celebrities 2.75% nba 1.83% social networks 0.92% technology brands 0.92%

Social topic influence math #87, in the #4617, if you #2555, the most 14.68%, this is #5225, science 5.5%, regeneron #7, how to 3.67%, the first 3.67%, vibe coding 3.67%

Top accounts mentioned or mentioned by @grok @flashtoso @mathacademy @androonme @darrellroot @exojason @krisabdelmessih @j33p4 @billockcody @silbey @rahimnathwani @johnrenfro2016 @jediyodajim7 @elonmusk @matteopaz06 @shoutshoutxyz @chicatrixy @zeframm @pbarbicane @franzherma296

Top assets mentioned WORK (WORK)

Top Social Posts

Top posts by engagements in the last [--] hours

"The most hard-hitting [--] sentences in all of talent development research: Everything is hard and no one cares. Everything is hard and no one cares"
X Link 2026-01-02T23:17Z 34.1K followers, 333.7K engagements

"Why Cant College Students Do Middle School Math New @MathAcademy podcast episode with @exojason posted here and everywhere else (see comment) 0:00 - Introduction 2:11 - Freshmen math collapse: [--] in [--] UCSD freshmen don't know middle school math 6:45 - Remedial remedial math: UCSD created remediation for remedial math 8:40 - Inflated grades: 25% of remedial-remedial students had perfect GPA in HS math 10:06 - Test-optional admissions removed the last objective metric 12:13 - Pandemic inflation: GPAs skyrocketed 14:37 - Removing tests pressures teachers to inflate grades 16:52 -"
X Link 2026-01-03T16:04Z 34.1K followers, 600.3K engagements

"Its shocking how much we know about how learning happens all the way down to the mechanics of whats going on in the brain. And its not just how learning happens but also what we can do to improve learning. There are plenty of learning-enhancing practice strategies that have been tested scientifically numerous times and are completely replicable. They might as well be laws of physics. For instance: we know that actively solving problems produces more learning than passively watching a video/lecture or re-reading notes. (To be clear: active learning doesnt mean that students never watch and"
X Link 2024-11-17T05:02Z 33.5K followers, 1.8M engagements

"You are capable of becoming way more skilled than you think. So don't get lazy don't make excuses don't waste your time looking for hacks to succeed without skill. Just do the damn work work smart (efficiency) and hard (volume) and reap the reward. You have so much potential even if you don't think so yourself. Just get the ball rolling on your skill-building stick with it seriously and consistently for months. You will begin to see yourself transform and you will begin to understand that you have lots of potential. your laziness is disrespectful for the people who believe in you :"
X Link 2026-01-19T08:03Z 33.8K followers, 127.7K engagements

"If you used an LLM today then you used sine and cosine. Another beautiful day without using sin cos or tan. Another beautiful day without using sin cos or tan"
X Link 2026-01-28T08:01Z 33.9K followers, 182.8K engagements

"Learning Debt & Skill Insolvency New @MathAcademy podcast episode with @exojason posted here and everywhere else (see comment) 0:00 - Introduction 2:04 - Course phases: instruction final review final exam remediation if needed 5:25 - Generating full-length SAT exams for our prep course 6:53 - Loosening up the gravity throttle for high-performing students 14:59 - Aptitude is measured by accuracy rate 18:07 - Accuracy correlates first with aptitude second with conscientiousness 21:35 - Assessment vs. non-assessment accuracies 23:43 - Propagating accuracy through the knowledge graph 24:27 -"
X Link 2026-01-28T20:18Z 33.9K followers, 18.5K engagements

"It's just cognitive weightlifting. Practice retrieving chunks of information from memory unassisted. Lift them up off the ground of long-term memory and raise them into working memory. As it gets easier make the chunks bigger and the retrieval conditions harder (longer spacing less priming time constraints). That's the cognitive equivalent of adding weight to the bar. How to improve your memory power: https://t.co/UF2aunYGg9 How to improve your memory power: https://t.co/UF2aunYGg9"
X Link 2026-01-29T03:12Z 33.9K followers, 130.5K engagements

"The [--] Laws of Learning according to legendary coach John Wooden the most quotable figure in the entire field of talent development: [--]. Explanation [--]. Demonstration [--]. Imitation [--]. Repetition [--]. Repetition [--]. Repetition [--]. Repetition [--]. Repetition Repetition rewires your brain Repetition rewires your brain Repetition rewires your brain https://t.co/IGFtDNltOw Repetition rewires your brain Repetition rewires your brain Repetition rewires your brain https://t.co/IGFtDNltOw"
X Link 2026-01-29T14:03Z 33.3K followers, 57.3K engagements

"My rule of thumb for non-essential spending: avoid it until it's eclipsed by investment returns. Historically that break-even number comes out to 3-4% of index fund holdings. This requires serious discipline but for me personally it's well worth the peace of mind. --- * 4% is historically safe for [--] years; true indefinite safety is closer to 3%. * "break even" means matching inflation with enough buffer to absorb volatility Save first. Invest second. Spend last. Save first. Invest second. Spend last"
X Link 2026-01-31T23:04Z 33.8K followers, [----] engagements

"Everybody wants to think critically and creatively but nobody wants build their knowledge base Reasoning creativity etc. involve combining elements of a knowledge base. You can't think with knowledge you don't have. You can't cook with ingredients you don't have"
X Link 2026-02-02T14:33Z 33.9K followers, [----] engagements

""At the team's pre-Olympic training camp . Kobe Bryant was the first player to arrive. In fact he beat most members of the coaching staff -- and was getting in workouts at 5:30 a.m. . The foundation for all of Bryant's feats -- the 81-point game the scoring titles the series-clinching jump shots the three championships he had already won with the Lakers -- was his work ethic and desire. The spectacular was rooted in the mundane in the monotony of hard labor." -- Scott Cacciola (@ScottCacciola) in "How Kobe Bryant Created His Own Olympic Dream Team" Kobe Bryant revealed that greatness is just"
X Link 2026-02-02T20:16Z 33.9K followers, 16.5K engagements

""At the team's pre-Olympic training camp . Kobe Bryant was the first player to arrive. In fact he beat most members of the coaching staff -- and was getting in workouts at 5:30 a.m. . The foundation for all of Bryant's feats -- the 81-point game the scoring titles the series-clinching jump shots the three championships he had already won with the Lakers -- was his work ethic and desire. The spectacular was rooted in the mundane in the monotony of hard labor." -- Scott Cacciola in "How Kobe Bryant Created His Own Olympic Dream Team" https://twitter.com/i/web/status/2018469545363509647"
X Link 2026-02-02T23:40Z 33.9K followers, [---] engagements

"🎯 "You can't ask a brain to recognize high-level patterns when the lower-level structures haven't formed yet. Once those lower-level structures have formed once patterns can be retrieved instantly without conscious effort the higher levels can build on them. A child who has to consciously sound out every letter doesn't have cognitive resources left for comprehension. But a child whose decoding is automatic can direct all their attention to meaning. The same principle applies to math to writing to scientific reasoning video games or any complex skill." https://t.co/jPPg1oxdS5"
X Link 2026-02-03T07:58Z 33.9K followers, 70.1K engagements

"Applied to math this approach produces calculus students who can't evaluate 5-3x6 without a calculator because they -- can't do mental arithmetic -- never learned their multiplication tables -- forgot the order of operations -- and forgot how negative numbers work. Unpopular opinion: if you spend enough time vibe coding you'll eventually learn to code Unpopular opinion: if you spend enough time vibe coding you'll eventually learn to code"
X Link 2026-02-03T17:02Z 33.9K followers, 195.1K engagements

"Lots of people thought coding would make math obsolete but what actually happened is mathy people who added coding to their skill stack became even more superpowered. Is coding still worth learning in the era of AI Absolutely. Is software development still worth learning in this era of AI https://t.co/2ejWg8733Q Is software development still worth learning in this era of AI https://t.co/2ejWg8733Q"
X Link 2026-02-04T05:02Z 33.9K followers, 14.9K engagements

"Pure vibe coding is like a Ponzi scheme: you take on debt then pay it off by doing more of the same thing that creates even more debt. It works for a while until the debt compounds to the point where you can't kick it down the road anymore. Then you're fcked. Unpopular opinion: you actually need real coding knowledge to vibe-code properly. https://t.co/q15Apdt7Cn Unpopular opinion: you actually need real coding knowledge to vibe-code properly. https://t.co/q15Apdt7Cn"
X Link 2026-02-04T20:01Z 34.1K followers, 31.1K engagements

"@trikcode Pure vibe coding is like a Ponzi scheme: You take on debt then pay it off by doing more of the same thing that creates even more debt. This works for a while until the debt compounds to the point where you can't kick it down the road anymore. Then you're screwed"
X Link 2026-02-04T22:04Z 33.7K followers, [----] engagements

"@ybantibtdi Order of operations is the mathematical equivalent of a contraction. 2+3x4 is shorthand for 2+(3x4). If you're going to complain about missing parentheses then you should also complain about missing letters in contractions"
X Link 2026-02-04T22:48Z 33.4K followers, [----] engagements

"Suppose you're given the chance to go back in time and place ONE book of your choosing on your own childhood nightstand. One book to butterfly-effect your entire life trajectory. What book do you choose"
X Link 2026-02-04T23:04Z 34K followers, 14.2K engagements

"AI gonna kill software engineering just like calculators killed math. oh wait ill say it for the 100th time whoever says software engineering is dead probably isn't working on hard enough problems ill say it for the 100th time whoever says software engineering is dead probably isn't working on hard enough problems"
X Link 2026-02-05T02:00Z 33.4K followers, 15.5K engagements

"When a middle or high school teacher has a bright math student and the teacher directs them towards competition math it's usually not because that's the best option for the student. Rather it's the best option for the teacher. It gives the student something to do while creating minimal additional work for the teacher. Competition math problems generally don't require students to learn new fields of math. Rather the difficulty comes from students needing to find clever tricks and insights to arrive at solutions using the mathematical tools that they've already learned. But if you look at the"
X Link 2026-02-05T11:02Z 33.9K followers, 78.8K engagements

"Many people think that learning math early is not appropriate for students' social emotional academic development. But the reality is that educational acceleration does not lead to adverse psychological consequences in capable students. According to a study titled Academic Acceleration in Gifted Youth and Fruitless Concerns Regarding Psychological Well-Being: A 35-Year Longitudinal Study: "There is little evidence that academic acceleration has negative consequences on the psychological well-being of intellectually talented youth. Those who were accelerated had few regrets for doing so."
X Link 2026-02-05T17:02Z 34.1K followers, [----] engagements

"@TheShiftJournal Direct link to the gem from @lelouchdaily: https://lelouch.dev/blog/you-are-probably-not-dumb/ https://lelouch.dev/blog/you-are-probably-not-dumb/"
X Link 2026-02-05T17:19Z 34.1K followers, [----] engagements

"Underrated component of finding career fit: Building enough savings to pursue opportunities where reward is uncertain. Everybody knows that learning / upskilling is a huge component of career success. But so is the ability to eat risk. It doesn't matter how smart or skilled you are if you can't eat the risk. As Sam Altman put it: "A lot of people miss great opportunities because they couldn't afford a reduction in salary." https://twitter.com/i/web/status/2019826906321834312 https://twitter.com/i/web/status/2019826906321834312"
X Link 2026-02-06T17:33Z 33.8K followers, 17.2K engagements

"The #1 most transferable skill of all time is learning how to climb skill trees especially ones that are brutally hierarchical. This meta-skill is abstract but you acquire it by practicing on particulars. You lean into specific domains and acquire measurable demonstrable skills. Once you get a feeling for the process you see it everywhere. Learning how to learn is the most important skill to acquire. Learning how to learn is the most important skill to acquire"
X Link 2026-02-07T11:03Z 34.1K followers, 12.7K engagements

"@Dearme2_ Pink Floyd did [--] years ago:"
X Link 2026-02-07T15:13Z 34.1K followers, 17.3K engagements

"@0xAlansari I'm glad my writing is resonating enough to copy and post it yourself but you should really include an attribution. It's not cool to rip other people's essays and pass them off as your own. https://x.com/justinskycak/status/2019365888542048662 When a middle or high school teacher has a bright math student and the teacher directs them towards competition math it's usually not because that's the best option for the student. Rather it's the best option for the teacher. It gives the student something to do while https://x.com/justinskycak/status/2019365888542048662 When a middle or"
X Link 2026-02-07T15:20Z 33.6K followers, [----] engagements

"http://x.com/i/article/2015204987417112576 http://x.com/i/article/2015204987417112576"
X Link 2026-02-07T17:08Z 34K followers, [----] engagements

"Doubt is expensive. Worrying hedging second-guessing "what if I can't". The opportunity cost is immense. every time you replace this is hard with whats the first step you shift brain activity from your amygdala (fear) to your prefrontal cortex (problem-solving). thats neuroplasticity in real time. every time you replace this is hard with whats the first step you shift brain activity from your amygdala (fear) to your prefrontal cortex (problem-solving). thats neuroplasticity in real time"
X Link 2026-02-08T07:58Z 34K followers, [----] engagements

"@bluewmist Doubt is expensive. Worrying hedging second-guessing "what if I can't". The opportunity cost is immense. "Wasting your time doubting whether you're going to be successful is pointless." --Kobe"
X Link 2026-02-08T13:44Z 33.8K followers, [---] engagements

"This is the textbook that a former student worked through right before conducting research that won 1st place ($250000) in the Regeneron Science Talent Search getting personally recruited by the head of NASA (with a fighter jet ride as a signing bonus) and publishing his results solo-author in The Astronomical Journal. @justinskycak lets see what the hypes about https://t.co/iXzaZB77pd @justinskycak lets see what the hypes about https://t.co/iXzaZB77pd"
X Link 2026-02-09T02:01Z 34.1K followers, 31.6K engagements

"It's still early and the first Eurisko cohort hasn't even graduated from college yet but there have already been some amazing student outcomes in terms of college admissions accelerated graduate degrees research publications and science fairs. More info: https://www.justinmath.com/math-academys-eurisko-sequence-5-years-later/ https://www.justinmath.com/math-academys-eurisko-sequence-5-years-later/"
X Link 2026-02-09T02:20Z 34.1K followers, [----] engagements

"In particular one student won 1st place ($250000) in the Regeneron Science Talent Search got personally recruited by the head of NASA with a fighter jet ride as a signing bonus (not a joke) and published his results solo-author in The Astronomical Journal"
X Link 2026-02-09T03:15Z 34.1K followers, [----] engagements

"I know the "getting personally recruited by the head of NASA (with a fighter jet ride as a signing bonus)" part sounds like a joke. But I'm not joking This is the textbook that a former student worked through right before conducting research that won 1st place ($250000) in the Regeneron Science Talent Search getting personally recruited by the head of NASA (with a fighter jet ride as a signing bonus) and publishing This is the textbook that a former student worked through right before conducting research that won 1st place ($250000) in the Regeneron Science Talent Search getting personally"
X Link 2026-02-09T04:57Z 33.9K followers, [----] engagements

"Become a learning machine. It is the most important valuable and transferable meta-skill in life. Focus on the diff relative to your yesterday's self and let compound growth take care of the absolutes. Charlie Mungers timeless advice to young people: https://t.co/dFpBvtae7j Charlie Mungers timeless advice to young people: https://t.co/dFpBvtae7j"
X Link 2026-02-09T08:02Z 34.1K followers, 20.5K engagements

"For anyone interested in a STEM career acquiring advanced technical skills early unlocks the most valuable thing in existence. Something even money can't buy. TIME. If you acquire demonstrable alien-level technical skills you can get doors opened earlier. You don't have to wait until college to do research projects under professors or even paid internships. If you're intentional about acquiring skills and putting yourself out there you can kick-start a serious career before most people your age are even taking serious classes. And once you acquire early junior-level experience that opens the"
X Link 2026-02-09T11:01Z 34K followers, 22.5K engagements

"A former student worked through that textbook right before conducting research that won 1st place ($250000) in the Regeneron Science Talent Search getting personally recruited by the head of NASA (with a fighter jet ride as a signing bonus) and publishing his results solo-author in The Astronomical Journal. This is the textbook I wrote to support the most advanced high school math/CS sequence in the USA. We scaffolded high school students up to doing masters/PhD-level coursework: reproducing academic research papers in artificial intelligence building everything from scratch in This is the"
X Link 2026-02-09T14:02Z 34.1K followers, 24.4K engagements

"Every time you overload your mental context window just break out a sub-task and focus on that. "I can't do it" typically just means "I can't do it all at the same time." So break it up into manageable pieces. You can do almost anything if you just break it up into small enough steps. Every time you replace Im overwhelmed with I need to decide what matters most and go slow your brain stops firing alarm signals and starts organizing information again. Every time you replace Im overwhelmed with I need to decide what matters most and go slow your brain stops firing alarm signals and starts"
X Link 2026-02-09T20:02Z 34K followers, [----] engagements

"@libriscent Every time you overload your mental context window just break out a sub-task and focus on that. "I can't do it" often just means "I can't do it all at the same time." So break it up into manageable pieces. You can do almost anything if you break it up into small enough steps"
X Link 2026-02-09T22:26Z 34K followers, [---] engagements

"@KrisAbdelmessih @MathAcademy Wow Kudos to him for putting in the work each day and congrats on the course promotion and phenomenal MAP score Please let both him & his little bro know that all of us at MA are proud of them and can't wait to hear more about where their math upskilling journeys take them 😀"
X Link 2026-02-10T01:58Z 33.9K followers, [---] engagements

"You should never fail twice for the same reason. Correcting a mistake will move you closer to success but making the same mistake over and over again will lock you into losing"
X Link 2026-02-10T04:58Z 33.9K followers, [----] engagements

"The number of people who have learned math without doing exercises is the same as the number of people who have built muscle without doing exercises: zero. Do the damn problems. Too many damn people think they can learn without doing the damn problems. Doing the damn problems makes all the damn difference. Do the damn problems. Too many damn people think they can learn without doing the damn problems. Doing the damn problems makes all the damn difference"
X Link 2026-02-11T04:58Z 34.1K followers, [----] engagements

"If you're not both technical and a domain expert then you're underpowered"
X Link 2026-02-11T17:01Z 34K followers, [----] engagements

"@J33P4 Harvard didnt require SAT/ACT scores from 20202024/25"
X Link 2026-02-13T13:04Z 34.1K followers, [---] engagements

"The most hard-hitting [--] sentences in all of talent development research:"
X Link 2025-09-08T18:03Z 34.1K followers, 376.6K engagements

"Pink Floyd already did [--] years ago: hit me with the harshest reality truth https://t.co/6cEk6kSefy hit me with the harshest reality truth https://t.co/6cEk6kSefy"
X Link 2026-02-02T23:02Z 34.1K followers, 194.6K engagements

"Lean into your strengths AND shore up your weaknesses. You are maximizing a product not a sum. We all have strengths and weaknesses but the best results come from being solid in every single one of these categories and world-class where we naturally excel"
X Link 2026-02-07T14:17Z 34.1K followers, [----] engagements

"It's also freely available. Links to the 400+ page textbook I wrote to support the most advanced high school math/CS sequence in the USA culminating in reproducing research papers in AI building everything from scratch: PDF: HTML: https://justinmath.com/books/#introduction-to-algorithms-and-machine-learning https://justinmath.com/files/introduction-to-algorithms-and-machine-learning.pdf https://justinmath.com/books/#introduction-to-algorithms-and-machine-learning https://justinmath.com/files/introduction-to-algorithms-and-machine-learning.pdf"
X Link 2026-02-08T22:32Z 34.1K followers, [----] engagements

"You want exciting opportunities Learn math and coding. Pursue a domain you love but simultaneously get so insanely technically skilled at math and coding that you can apply them to your domain of interest in an innovative way. Deep domain expertise plus alien-level technical skills equals lots of interesting and rewarding work to do. https://twitter.com/i/web/status/2021404319673667587 https://twitter.com/i/web/status/2021404319673667587"
X Link 2026-02-11T02:02Z 34.1K followers, [----] engagements

"Time is the #1 killer of dreams and aspirations. When someone gives up on their dream or gives up on figuring out what that dream is it's typically a result of them losing the race against time. That is the point of compressing time of removing skill bottlenecks early. YOUR LACK OF URGENCY IS WASTING YOUR POTENTIAL . YOUR LACK OF URGENCY IS WASTING YOUR POTENTIAL "
X Link 2025-09-13T19:02Z 34.1K followers, 780.6K engagements

"If you want to major in math at an elite university but all the knowledge you show up with is high school math and AP Calculus and youre not a genius then youre probably going to get your ass handed to you. High school math even the honors track even getting a [--] on the AP Calculus BC exam often doesnt accurately depict the level of background knowledge (especially proof-writing ability) that is assumed in serious math-major courses. It is not uncommon for elite university admits who are serious about majoring in math to graduate high school -- having already taken linear algebra &"
X Link 2025-10-05T09:32Z 34.1K followers, 1.3M engagements

"One of the most common questions I get on here is "I am twenty-something years old is it too late for me to learn math/coding/etc." Plenty of people acquire new skills later in life including math and coding even well beyond their twenties and put them to great use. In the grand scheme of life and career your twenties are still very very early. its never too late to learn math and programming. its never too late to learn math and programming"
X Link 2026-02-08T23:02Z 34.1K followers, 23.9K engagements

"Many people think that calculus is the end of the road for math and that it doesn't matter if you get there many years ahead of schedule. But that is so far from the truth. There are even more university math courses above calculus than there are high school courses below calculus. Calculus is not even halfway. After a single variable calculus course like AP Calc BC most serious students who study quantitative majors like math physics engineering and economics have to take core engineering math courses including linear algebra multivariable calculus differential equations and probability and"
X Link 2026-02-12T14:02Z 34.1K followers, [----] engagements

"By seriously skilling up and applying those skills to solve real problems that people are willing to pay to make go away. This can be a long road (like [--] years not [--] year) but it is the only reliable path to wealth. You can either start making your way now or waste years on "get rich quick" lottery tickets and start later. The path is patient: it will stay there until you're ready to acknowledge it. But it is also uncompromising: it won't shorten or speed you along just because you started later. If it's important to you to reach a high level of success early in life then you would be well"
X Link 2026-02-12T23:01Z 34.1K followers, [----] engagements

"Life gets a lot more fun fulfilling and hopeful when you're climbing a skill tree instead of doomscrolling. I think about this all the time. https://t.co/W1q0DVC3Jy I think about this all the time. https://t.co/W1q0DVC3Jy"
X Link 2026-01-27T23:03Z 34.1K followers, 798.9K engagements

"Pink Floyd did [--] years ago: Nobody warns you how quickly you go from [--] to [--]. Nobody warns you how quickly you go from [--] to 30"
X Link 2026-02-07T08:16Z 34.1K followers, 409.8K engagements

"Don't overreact to bad days. Even if youre making the right decisions you can still have bad days. Even if you play your cards in the statistically optimal way you will not win every hand. So its important to stay consistent and not let a single bad outcome derail a good overall trend. Yes that can be difficult psychologically. We tend to be risk-averse and overreact to negative outcomes. But it can help to zoom out and look at your progress on a longer timescale. The long game is the only game that matters short games only matter insofar as their contribution to the long game. At the same"
X Link 2026-02-12T04:57Z 34.1K followers, 19.7K engagements

"Domain expertise math coding and communication. - Domain expertise to identify an important problem and envision a solution. - Math and coding to build it. - Communication to deliver it"
X Link 2026-02-13T20:02Z 34.1K followers, [----] engagements

"Zoom out and look at your progress on a longer timescale. Day by day you may not see it you may doubt its happening. But if you look back at where you were a couple months ago a year ago a couple years ago that should make the growth obvious. https://t.co/OF7vBJKwx2 https://t.co/OF7vBJKwx2"
X Link 2026-02-15T14:05Z 34.1K followers, [----] engagements

"If you don't select for merit you get idiocracy. This is obvious but many universities insisted on learning this the hard way. Going test-blind was dumb and what's even dumber is remaining test-blind in the face of the aftermath. The UCs still don't consider SAT/ACT scores in admissions. Not even when deciding who to award scholarships. This sounds like a joke but it's not: [--] in [--] incoming UCSD freshmen dont know middle school math and the remedial math course was too advanced so UCSD had to create a remedial remedial math course and a quarter of the students placing into it had a perfect"
X Link 2026-02-15T17:02Z 34.1K followers, 30.5K engagements

"How to increase your "luck surface area" according to @exojason who coined the phrase back in 2010: "how are you so lucky" https://t.co/rppS5NyJ24 "how are you so lucky" https://t.co/rppS5NyJ24"
X Link 2026-02-07T05:31Z 34.1K followers, 194.5K engagements

"Do the damn problems. Too many damn people think they can learn without doing the damn problems. Doing the damn problems makes all the damn difference. pov: you actually read the textbook and do the homework problems and real analysis starts to make sense https://t.co/Vcn0KlN6KW pov: you actually read the textbook and do the homework problems and real analysis starts to make sense https://t.co/Vcn0KlN6KW"
X Link 2026-02-10T08:01Z 34.1K followers, 72.5K engagements

"Never forget that your goal is to actually do well not to convince other people you're doing well. In your 20s and 30syou will be tempted to prove that youre doing well its important you resist performing for an audience that isnt watching. https://t.co/FtBSeMWmjD In your 20s and 30syou will be tempted to prove that youre doing well its important you resist performing for an audience that isnt watching. https://t.co/FtBSeMWmjD"
X Link 2026-02-11T14:02Z 34.1K followers, 827.6K engagements

"The most likely trajectory you'll follow is the one traced out by your habits compounding infinitely into the future. The best predictor of who you'll become is what your current habits are. its the small habits. how you spend your mornings. how you talk to yourself. what you read. What you watch. who you share your energy with. who has access to you. that will change your life. its the small habits. how you spend your mornings. how you talk to yourself. what you read. What you watch. who you share your energy with. who has access to you. that will change your life"
X Link 2026-02-12T08:01Z 34.1K followers, 23.1K engagements

"Even Harvard does remedial math these days. Generation Z college students are reportedly arriving on campus struggling with basic reading comprehension even difficulty processing full sentences per FORTUNE. Generation Z college students are reportedly arriving on campus struggling with basic reading comprehension even difficulty processing full sentences per FORTUNE"
X Link 2026-02-13T08:01Z 34.1K followers, 18.9K engagements

"Mathematics is the antithesis of brainrot. Must consume more mathematics literature. Must consume more mathematics literature"
X Link 2026-02-13T11:01Z 34.1K followers, 57.2K engagements

"Many learners fail to understand that grinding through concrete examples imbues you with intuition that you will not get if you jump directly to studying the most abstract ideas. If you go directly to the most abstract ideas then youre basically like a kid who reads a book of famous quotes about life and thinks they understand everything about life by way of those quotes. The way you come to understand life is not by just reading quotes. You have to actually accumulate lots of life experiences. And you might think you understand the quotes when youre young -- but after you accumulate more"
X Link 2026-02-13T14:01Z 34.1K followers, 29.2K engagements

""Wasting your time doubting whether you're going to be successful is pointless." Kobe https://t.co/0IDwAPZnUc https://t.co/0IDwAPZnUc"
X Link 2026-02-14T16:04Z 34.1K followers, 94.2K engagements

"It's amazing how much learning & progress you can pack into a relatively small period of time if you do hard things one well-calibrated step at a time and take it really seriously. Just like how atoms are mostly empty space and any physical object can be compressed into a tiny speck if you remove all that empty space -- most of our time is just empty space unless we make a serious effort to pack it. We need more focus. https://t.co/qz8eLsBvzG We need more focus. https://t.co/qz8eLsBvzG"
X Link 2026-02-14T23:32Z 34.1K followers, [----] engagements

"5th graders math-ing better than the average 11th grader. Damn https://t.co/1erhwwi01p https://t.co/1erhwwi01p"
X Link 2026-02-15T22:16Z 34.1K followers, [----] engagements

"When you stop measuring merit you stop selecting for merit. This sounds like a joke but it's not: [--] in [--] incoming UCSD freshmen dont know middle school math and the remedial math course was too advanced so UCSD had to create a remedial remedial math course and a quarter of the students placing into it had a perfect [---] https://t.co/ecfvHWuPK2 This sounds like a joke but it's not: [--] in [--] incoming UCSD freshmen dont know middle school math and the remedial math course was too advanced so UCSD had to create a remedial remedial math course and a quarter of the students placing into it had a"
X Link 2026-02-16T02:53Z 34.1K followers, [----] engagements

"Its shocking how much we know about how learning happens all the way down to the mechanics of whats going on in the brain. And its not just how learning happens but also what we can do to improve learning. There are plenty of learning-enhancing practice strategies that have been tested scientifically numerous times and are completely replicable. They might as well be laws of physics. For instance: we know that actively solving problems produces more learning than passively watching a video/lecture or re-reading notes. (To be clear: active learning doesnt mean that students never watch and"
X Link 2026-01-23T00:33Z 34.1K followers, 304.6K engagements

"The most transferable skill you can acquire is learning how to climb skill trees -- especially ones that are brutally hierarchical. This meta-skill is abstract but you acquire it by practicing on particulars. You gotta lean into specific domains and acquire measurable demonstrable skills. But once you see it once you get a feeling for the process you see it everywhere. This book is worth reading. Never stop learning. https://t.co/E2Cbp5S7Cg This book is worth reading. Never stop learning. https://t.co/E2Cbp5S7Cg"
X Link 2026-01-30T02:01Z 34.1K followers, 185.5K engagements

"Growth on here really is about providing value. My highest view-to-follow conversion rate came from posting the free PDF of a 400+ page textbook that a former student worked through right before conducting research that won 1st place ($250000) in the Regeneron Science Talent Search getting personally recruited by the head of NASA (with a fighter jet ride as a signing bonus) and publishing his results solo-author in The Astronomical Journal. A direct quote from Caltech's website: "Through his research at Caltech a local high school student Matteo Paz revealed [---] million previously unknown"
X Link 2026-01-31T04:58Z 34.1K followers, 40.2K engagements

"This is the textbook I wrote to support the most advanced high school math/CS sequence in the USA. We scaffolded high school students up to doing masters/PhD-level coursework: reproducing academic research papers in artificial intelligence building everything from scratch in Python. This was in Math Academy's (former) Eurisko program which ran from 2020-23. (Ended when I relocated because nobody else in the district had the requisite knowledge to teach it.) @justinskycak lets see what the hypes about https://t.co/iXzaZB77pd @justinskycak lets see what the hypes about https://t.co/iXzaZB77pd"
X Link 2026-02-08T20:01Z 34.1K followers, 148.3K engagements

"I wrote this textbook while teaching the most advanced high school math/CS sequence in the USA. It's freely available. Link in first reply. It took high school students all the way up to reproducing academic research papers in artificial intelligence building everything from scratch in Python. Students didnt just import off-the-shelf libraries to complete run-of-the-mill projects. They actually implemented neural networks backpropagation game trees evolutionary algorithms you name it from scratch. Its still early and the first Eurisko cohort is still in college but there have already been"
X Link 2026-02-09T17:05Z 34.1K followers, 37.3K engagements

"This sounds like a joke but it's not: [--] in [--] incoming UCSD freshmen dont know middle school math and the remedial math course was too advanced so UCSD had to create a remedial remedial math course and a quarter of the students placing into it had a perfect [---] GPA in their high school math courses. That sounds so ridiculous like something youd read in The Onion but its unfortunately real. Here are some direct quotes from the UCSD report: "Between [----] and [----] the number of students whose math skills fall below high school level increased nearly thirtyfold; moreover 70% of those students"
X Link 2026-02-13T02:01Z 34.1K followers, 636.3K engagements

"@elonmusk 💯 Even many Harvard students now "lack foundational algebra skills" after going test-optional from 2020-24/25"
X Link 2026-02-14T03:14Z 34.1K followers, 10.3K engagements

"@noheartinhim The longer you wait to build the life you want the more likely you are to settle for something else"
X Link 2026-02-14T13:07Z 34.1K followers, [----] engagements

"Everybody wants to get to stage [--] but nobody wants to grind through stage 2"
X Link 2026-02-15T09:01Z 34.1K followers, [----] engagements

"Can't think of a better way to close out [----] than seeing the head of NASA ask my former student @matteopaz06 to apply with a fighter jet ride as a signing bonus. Matteo was one of my students in the Eurisko program which during its operation from 2020-23 was the most advanced high school math/CS sequence in the USA. It culminated in high school students doing masters/PhD-level coursework (reproducing academic research papers in artificial intelligence building everything from scratch in Python) Matteo joined Eurisko as a 10th grader during the last year it was offered and worked hard to"
X Link 2025-12-28T06:12Z 34.1K followers, 595.3K engagements

"This is the textbook I wrote to support the most advanced high school math/CS sequence in the USA. It's freely available. Link in first reply. In Math Academy's (former) Eurisko program which ran from 2020-23 we scaffolded high school students up to doing masters/PhD-level coursework: reproducing academic research papers in artificial intelligence building everything from scratch in Python. We currently have all of Eurisko's math prerequisites available on the Math Academy system (which is where Matteo and other Eurisko students learned it). Eurisko ended in [----] when I relocated because"
X Link 2025-12-29T04:48Z 34.1K followers, 427.7K engagements

"@ShoutShoutxyz When you stop measuring merit you stop selecting for merit"
X Link 2026-02-13T13:07Z 34.1K followers, [----] engagements

"The road to deep intuitive "in-your-bones" understanding -- not just surface-level conceptual fluff -- is paved with grinding concrete examples. Without those concrete problem-solving experiences you're like a kid who thinks they understand life after reading some philosophy. how it feels as an adult to revisit the classic books and poems you were taught in class now with fresh eyes and life experience: https://t.co/OE550j6wgE how it feels as an adult to revisit the classic books and poems you were taught in class now with fresh eyes and life experience: https://t.co/OE550j6wgE"
X Link 2026-02-13T23:17Z 34.1K followers, [----] engagements

"There is no race against peers just a race against time. The further time gets ahead of you the more likely you are to settle into a life that is fine despite being unable to shake the feeling that you could have found something better if you had more time. In your 20s you'll feel like you're losing the race It's very important to understand that there is no race https://t.co/9exaQC7L2X In your 20s you'll feel like you're losing the race It's very important to understand that there is no race https://t.co/9exaQC7L2X"
X Link 2026-02-14T02:01Z 34.1K followers, 29.9K engagements

"The longer you wait to build the life you want the more likely you are to settle for something else. its time to get more aggressive bout the life i want its time to get more aggressive bout the life i want"
X Link 2026-02-14T04:59Z 34.1K followers, 59.2K engagements

"Creativity requires automaticity the ability to execute subskills effortlessly without conscious thought. Without automaticity you have to consciously think about every low-level action which overloads your working memory and leaves no room for higher-level creative thought"
X Link 2026-02-14T08:01Z 34.1K followers, [----] engagements

"Even when youre doing what you love there will be grindy phases. You have to push through them to unlock more of what you love. Sticking with it can be hard. But what's even harder is quitting and then finding ways to cope with your unrealized potential. never quit something with great long term potential just because you can't deal with the stress of the moment. never quit something with great long term potential just because you can't deal with the stress of the moment"
X Link 2026-02-14T11:01Z 34.1K followers, [----] engagements

"@chicatrixy @garrytan A major contributor to this train wreck is that the UCs are test-blind. They don't consider SAT/ACT scores in admissions. Not even when deciding who to award scholarships. Consequently there is every incentive for schools to inflate grades and nothing to validate them against"
X Link 2026-02-14T16:00Z 34.1K followers, [----] engagements

"Math-maxxing changed everything. Let's see your positively https://t.co/jfzzHThtTm Let's see your positively https://t.co/jfzzHThtTm"
X Link 2026-02-14T18:30Z 34.1K followers, [----] engagements

"Imagine looking back and realizing that you weren't brave enough to chase the life you truly wanted and now you constantly wonder whether it would have worked. "What will I regret not having done when I'm old and why haven't I done it yet" is one of the best questions you can ask yourself daily. Imagine looking back one day and realizing you were brave enough to chase the life you truly wanted and it worked. Imagine looking back one day and realizing you were brave enough to chase the life you truly wanted and it worked"
X Link 2026-02-14T21:01Z 34.1K followers, 19K engagements

"Just as you can leverage compound growth to build an incredible life you can also completely wreck your life by compounding the wrong things. $1.65 million in student loans for a $300k job. Reminds me of [----] when loan officers gave out subprime loans. This is 5.5x their salary. Unheard of. Criminal even. https://t.co/0Xsb8Bt1zd $1.65 million in student loans for a $300k job. Reminds me of [----] when loan officers gave out subprime loans. This is 5.5x their salary. Unheard of. Criminal even. https://t.co/0Xsb8Bt1zd"
X Link 2026-02-15T03:52Z 34.1K followers, [----] engagements

"The [--] Laws of Learning according to legendary coach John Wooden: [--]. Explanation [--]. Demonstration [--]. Imitation [--]. Repetition [--]. Repetition [--]. Repetition [--]. Repetition [--]. Repetition Repetition rewires your brain. Repeat what you want to become. This is neuroplasticity. https://t.co/HXgOnZB2kZ Repetition rewires your brain. Repeat what you want to become. This is neuroplasticity. https://t.co/HXgOnZB2kZ"
X Link 2026-02-15T06:31Z 34.1K followers, 15.3K engagements

"Lots of students study way more than necessary while simultaneously learning way less than necessary. They use low-effort inefficient study techniques like re-reading and highlighting instead of just sucking it up and engaging in efficient retrieval practice and problem-solving. You can go for way longer when you're using a low-effort study method while simultaneously learning way less. https://twitter.com/i/web/status/2022997567710380034 https://twitter.com/i/web/status/2022997567710380034"
X Link 2026-02-15T11:33Z 34.1K followers, 28.5K engagements

"Do it scared. Do it tired. Do it doubting. Do it imperfect. Do it alone. Do it anyway. You literally just have to get really good at continuing. You literally just have to get really good at continuing"
X Link 2026-02-15T20:01Z 34.1K followers, 17.2K engagements

"Transcribing re-reading highlighting etc. are all bullshit study techniques. Seriously if you want to bullshit someone into thinking that you are studying without actually retaining much information then those are the techniques to use. But if youre interested in actually retaining information then retrieval practice is the way. Practice techniques that center around retrieving information directly from ones brain produce superior learning outcomes compared to techniques that involve re-ingesting information from an external source. As Yang et al. (2023) summarize: ".Practice testing (i.e."
X Link 2026-02-16T06:02Z 34.1K followers, [----] engagements

"@stjk2513 Ideally you want to find something that appeals to both personal affinity and practicality. Wrote a bit about that here: https://www.justinmath.com/selecting-a-good-problem-to-work-on/ https://www.justinmath.com/selecting-a-good-problem-to-work-on/"
X Link 2026-02-03T03:56Z 33K followers, [--] engagements

"Yes but my point is: it's NOT true that if you spend enough time in stage [--] you eventually get to stage [--]. You gotta leave stage [--] and grind through stage [--]. I don't think there's anything wrong with vibe coding to start I'm just saying that "spending enough time vibe coding" will not lead to expertise. https://twitter.com/i/web/status/2018758909784363456 https://twitter.com/i/web/status/2018758909784363456"
X Link 2026-02-03T18:50Z 33.1K followers, [----] engagements

"🎯 "Focus on becoming useful not impressive." Always remember that your goal is NOT to prove you're smart it's to make problems go away. If your primary focus is peacocking your intellect then you're going to create problems instead of making them go away. You don't get points for creating an unnecessary problem on which to demonstrate your smarts. You don't get points for creating an overcomplicated solution to a simple problem. You lose points for these things. What you get points for is taking a problem and making it go poof completely solved and easy to maintain and nobody has to think"
X Link 2026-02-03T20:02Z 33.3K followers, [----] engagements

"The greatest educational and career life hack is learning advanced math ahead of time. When a student does that they unlock the opportunity to launch into a wide variety of specialized fields that are usually reserved for graduates with strong mathematical foundations. This fast tracks them towards discovering their passions developing valuable skills in those domains and making professional contributions early in their career which ultimately leads to higher levels of career accomplishment. And I'm not exaggerating here. This is actually backed up by research. On average the faster you"
X Link 2026-02-04T02:03Z 33.1K followers, [----] engagements

"@ZeframM My extremely successful heuristic is that if a grown-ass adult doesn't know elementary school math then they are not good at math"
X Link 2026-02-04T22:50Z 33.1K followers, [----] engagements

"@rieszspieces Order of operations is the mathematical equivalent of a contraction. 2+3x4 is shorthand for 2+(3x4). If you're going to complain about missing parentheses then you should also complain about missing letters in contractions"
X Link 2026-02-04T22:52Z 33.1K followers, [---] engagements

"The keys to effective training in athletics music etc. are the same as the keys to effective training in any other skill-based domain (e.g. mathematics). Simply consuming information doesnt cut it. You have to actively practice the skills that youre hoping to acquire"
X Link 2026-02-05T04:58Z 33.2K followers, [----] engagements

"@chesterzelaya 💯 Saying software engineering is dead because of AI is like saying math is dead because of calculators"
X Link 2026-02-05T07:22Z 33.2K followers, [---] engagements

"If you don't think the order of operations (PEMDAS) is worth learning then you should also complain about contractions. 2+3x4 is shorthand for 2+(3x4). If you're going to complain about missing parentheses then you should also complain about missing letters in contractions"
X Link 2026-02-05T08:02Z 33.1K followers, [----] engagements

"@Richard_She This is wild"
X Link 2026-02-05T19:07Z 33.1K followers, [--] engagements

"Pink Floyd put it best: if you dont put in effort into curating the life you want every single day youd wake up one day and several years have passed. if you dont put in effort into curating the life you want every single day youd wake up one day and several years have passed"
X Link 2026-01-24T07:56Z 34.1K followers, 226.6K engagements

"By seriously skilling up and applying those skills to solve real problems that people are willing to pay to make go away. This can be a long road (like [--] years not [--] year) but it is the only reliable path to wealth. You can either start making your way now or waste years on "get rich quick" lottery tickets and start later. The path is patient; it will stay there until you're ready to acknowledge it. But it is also uncompromising; it won't shorten or speed you along just because you started later. If it's important to you to reach a high level of success early in life then you would be well"
X Link 2025-12-14T07:22Z 34.1K followers, 218.1K engagements

"It's insane that this is reality. Not an Onion article. UCSD's remedial math course is too advanced for nearly 10% of incoming freshmen who can't even do middle school math -- like anything above arithmetic with fractions. So they had to create a remedial remedial course -- a remedial course for the remedial course -- which focuses "entirely on elementary and middle school Common Core math subjects (grades 1-8)". UCSD is ranked the 6th best public university in the USA. So let me get this straight: [--] in [--] incoming UCSD freshmen dont know middle school math and the remedial math course was"
X Link 2026-01-04T18:45Z 34.1K followers, 250.8K engagements

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