There's some truth to all that, but I'd say it's kind of another point. We don't have and never really did have a logically secure finance system. We have a hum

There's some truth to all that, but I'd say it's kind of another point. We don't have and never really did have a logically secure finance system. We have a human-secured finance system instead, where for virtually every transaction, there is a human somewhere who has the power to review and reverse it. It seems clumsy to the programmer's mind, but it largely works pretty well. I don't think we even have a really solid idea what a logically secure financial system would look like, how to build it, or if it's practical. Bitcoin seems to be the closest and most practical thing we have so far to that. While Bitcoin is cool and interesting in a lot of ways, the practical security of it leaves much to be desired, based on the observed results so far.