> Satoshi proved that a blockchain is only secure if it's the blockchain with the longest accumulated proof-of-work record. This statement is correct, but you

> Satoshi proved that a blockchain is only secure if it's the blockchain with the longest accumulated proof-of-work record. This statement is correct, but you appear to be fundamentally misunderstanding it. The category being considered is that of blockchains making incompatible claims about the same truth. Events on the dogecoin blockchain are making no claims about the bitcoin blockchain and vice versa, so this statement is irrelevant. Similarly it is irrelevant between any two distinct tokens even if they originate as forks of another token. You could download the BTC blockchain, take it to a distant planet and transact with it using only local compute just fine. It's just that -- were you to re-establish contact with earth -- omicron-persei-eight-BTC and earth-BTC would now be different tokens. So long as some subset of the population agreed to use the former it would be a valid token and earthlings could transact on your blockchain with their wallets (at the balance they had when you left), it just wouldn't be earth-BTC