I don't think anyone could honestly promise that. The law is written in code, and clearly code can be changed by human intervention. It's even open source, so

I don't think anyone could honestly promise that. The law is written in code, and clearly code can be changed by human intervention. It's even open source, so technically anyone can change the Ethereum protocol, at any time. Of course, changes to the law are effective only when there is overwhelming consensus, otherwise they're called minority forks.