A blockchain is just a tower of LEGO bricks, each brick packs a batch of transactions. Snap one on and everyone sees it, and you can't yank it off without wrecking the whole tower.

$BTC $77,648 up 0.92% and $ETH $2,257 up 0.71% while I'm watching. I keep picturing my own cluttered LEGO set when I think about it.

What everyday thing would you use to picture a blockchain?

#ELI5 #LearnCrypto