Self driving cars will still have to have safety features in case another car collides with it. No self driving system is going to be smart enough to avoid any possible collision when there are other drivers in the fray.
The subject of the thread that the OP was responding to is Dr Dre's domestic abuse. If that's not what the OP meant, apologies, but I don't think the word domestic matters all that much; same point stands even when you remove it.
That's not what fiat currency means, which wraps its concept of value in government guarantee and law. Gold is very definitely not a fiat currency, it is a commodity currency, probably the definitive commodity currency. Bitcoins only have value because people say they do. Moreno that gold even, because at least you can make some things out of gold.