I thought we were talking about World reserve currency here i.e. international trade.

I agree that you need the currency to be accepted by the state for good local trade support. But that was not the point.

> thought we were talking about World reserve currency here i.e. international trade

Yes. If you're a random country, you can use your dollars to buy shit from America. Countries hold reserves for basically two direct reasons: to intervene in FX markes and protect their imports. The latter is the main one. At the end of the day, your ideal reserve composition matches your import portfolio because you want currency you can send to the people who are selling you shit.

Is it a conspiracy theory that Bitcoin was developed by the US military as a hedge against US dollar hyperinflation? I've heard that argument made somewhere but maybe it was just a rumor to try to legitimize Bitcoin?

> Is it a conspiracy theory that Bitcoin was developed by the US military as a hedge against US dollar hyperinflation?

Yes, none of that makes an iota of sense. If a military wants to take inflation into its own hands, it has far-better options. From hoarding to, you know, taking shit.