I see you've reduced your position from "Bitcoin is a scam" to "Bitcoin has some potential vulnerabilities". The 51% attack vulnerability is a well-known risk.

I see you've reduced your position from "Bitcoin is a scam" to "Bitcoin has some potential vulnerabilities". The 51% attack vulnerability is a well-known risk. It was described in Satoshi Nakamoto's white paper. In practice, it is highly unlikely due to many reasons which I won't elaborate here but I there's a lot of material about it online. As long as there is more than one government, no one government can take control over Bitcoin. They can possibly outlaw its use within their own borders (with difficulty).