See the performance of Venezuela's stock market over the last 5 years:
https://tradingeconomics.com/venezuela/stock-market
(The "crash" in late 2018 was the redenomination of the bolivar at a 1:1000 ratio, which affected everything denominated in bolivars, including the stock market.)
Honestly wealth growth is the least of my worries if we have another 1929 level crash or hyperinflation.
Though bitcoin has really been untested as a safe asset and currently behaves more like a speculative one.
But even though I'm optimistic about Bitcoin, I don't see it as crash-proof except in one crash scenario. It's mostly a speculative risk-on asset that loses value in crisis scenarios. We saw that in the covid crash in March last year as Bitcoin prices tumbled along with other markets.
The one crash scenario where Bitcoin doesn't crash is if Bitcoin is the thing that triggers a crisis of confidence in fiat assets. That's the hyperbitcoinization scenario that still looks improbable, but easier to imagine now than it was a couple years ago.
It would be interesting to see how much the gold mining industry contributes to global warming (including not just extraction, but processing and shipping). Trading, too, but I suppose that's done mostly by contract, and not shipping gold bars around...
When the next crash does come, I’m ready to buy.