Crypto is rallying. Bitcoin is higher than it has been in over a year. It's been trending up for a while though.

I would love to know why. I don’t see any new great thing it can do. Who are these people pouring in billions in a world with real interest rates. Criminals moving money?

Different world views than you probably have. A person who thinks the USD is stable and the stock market is priced reasonably is going to have a different attitude than one who thinks the USD is going through its riskiest in modern history and that the stock market is looking more and more like an astronomically sized bubble, all with WW3 looming. And then there's the guy in the middle who's just diversifying to try to maximize his gain (or minimize his risk) across all possible outcomes.

Can you buy bitcoin with other crypto? Some of that makes sense if you can create a currency, pump it's value, and then exchange for bitcoin.

SEC might allow/not be allowed to block spot bitcoin ETFs