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![IamDavidBrain Avatar](https://lunarcrush.com/gi/w:24/cr:twitter::893152226780356614.png) DavidBrain [@IamDavidBrain](/creator/twitter/IamDavidBrain) on x 3141 followers
Created: 2025-07-21 21:30:53 UTC

Most Blockchains cannot talk to each other.

They have to use a bridge....

Even EVM chains...

XCM...

Also known as, 

Cross-Consensus Message Format, 

Makes it possible for Blockchains created on @Polkadot to talk to each other. 

By talking to each other, I mean, send messages/tokens/transactions between themselves without using bridges.

On your left, you can see Polkadot, also known as the relaychain

By your right, you can see Polkadot-based blockchains. 

You can see that the relay chain is in direct communication with other blockchains. 

That means I can send $PEAQ from the @peaq blockchain to the relaychain without using a bridge.

The same way I can send $DOT from the relaychain to Bifrost.

Here's what is happening in the image below:

![](https://pbs.twimg.com/media/GwaFRUebEAMoD1N.jpg)

XXXXX engagements

![Engagements Line Chart](https://lunarcrush.com/gi/w:600/p:tweet::1947408966780391646/c:line.svg)

[Post Link](https://x.com/IamDavidBrain/status/1947408966780391646)