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2026-10-23 08:16:40 UTC

LordFestival on Nostr: for a long time i didn't get why bitcoin needs all that energy. it just looked like ...

for a long time i didn't get why bitcoin needs all that energy. it just looked like waste to me

what changed it for me was thinking about what the blockchain actually is. it's a record of what happened. who sent what to whom

and any record like that has the same weakness. whoever holds it can change it. banks fix their databases all the time. usually for good reasons, sometimes not. you just have to trust them

bitcoin doesn't have anyone holding the record. so how do you stop people from rewriting it?

you make rewriting it cost a ridiculous amount of energy

every block takes real work to produce, and each one sits on top of the one before. if you wanted to change something from last week, you'd have to redo a week's worth of the whole network's work, and do it faster than everyone else is moving forward. not happening

so the energy isn't really being wasted. it's what makes the history stick. it's kind of the ink the whole thing is written in

that's when it made sense to me. the point isn't the energy. the point is a past nobody can quietly edit