Yea I don't think the dollar when people say fiat. I immediately go back to diluting gold coins with other metals... been a problem since at least Roman times... likely longer.

I'd disagree and say fiat is much easier to circumvent, you don't have to hold it, you can always adopt a different unit for your own personal balance sheet/earnings statement. People with a clue have done this with gold and lands throughout history, regardless of the prevailing currency. The only tool necessary to circumvent it is knowledge, which between the speed of information today and Bitcoin having less negative trade-offs than gold is why fiat is party is already over in my view.

I think it's incumbent to say if you'd get rid of something you propose an alternative and can defend that alternative as workable. I like to think I'm fairly creative and well-studied in history, but I still couldn't articulate anything other than perhaps post-scarcity that makes better trade-offs than a minimalist tax regime.