Imagine an extremely slow CPU, where every opcode cost money to run. Imagine you could deploy code to this machine, and it would be guaranteed to execute in a p

Imagine an extremely slow CPU, where every opcode cost money to run. Imagine you could deploy code to this machine, and it would be guaranteed to execute in a publicly verifiable way, and nobody could change it or modify it (unless you get several influential people to agree to a fork that changes the rules). I think that's basically Ethereum. Oh, also imagine that instead of costing money directly, you instead have to pay somebody to run their car engine at full speed while up on blocks in a garage. Oh, and if they ever stop revving their car engine, somebody else might rev their engines faster/more and then they can steal all your money. Edit: Apparently ETH 2.0 has reduced the amount of pointless engine-revving.