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by VMG 4492 days ago
The mined coins, sure, but you can include the transactions that were omitted in the revealed fork in the blocks after that. That's why the document states An attacker that controls more than 50% of the network's computing power can, _for the time that he is in control_

I'm not saying that when this would happen it would be a good day for Bitcoin by the way.

1 comments

I don't understand. I think "for the time that he is in control" means "as long as he has > 50% hashing power". No need for 100%. As long as he has > 50% he can eventually overtake any fork that includes a new transaction.

In theory, given enough time (a very long time), someone able to maintain 50.0000001% of hashing power could eventually rewrite the entire blockchain after the genesis block.