Earlier quoted context omitted.
It's become gold. Preferred by criminals, untraceable (gold is a single stable isotope, basically untraceable). A store of wealth. And you can't buy a pizza with gold, either, and there are tons of scammers who love gold (I remember, about Thailand, the scammers would conspire to get people's gold, a few would talk loudly about how jewels were going up, then someone else in your trip would just happen to mention, des…
Gold also has a fatal flaw, there's only so much of it, building a currency based on gold (ie the US dollar on the gold standard) limits the size of the economy, it can't grow if you can't pay for stuff - it's why we left the gold standard. Bitcoin by design only has a fixed number of coins available, eventually the miners will have mined them all. It has the same limitation that gold has and basing an economy on it…
Bitcoin is limited by the block size and the lack of working L2 solutions (lightning is permanently broken).
But other currencies, like BCH don't have that problem, and can easily represent the whole US economy.