I've often wondered about this myself. Financially we would be ok for the short run but that would be decistating to our retirement savings.
Perhaps bartering will be a large part of the way of the world in the future when a bag of beans becomes more valuable then something from pottery barn. Or not, I'm no economist, but these though exercises are important I think to ready ourselves for hardships in unforseen times.
The old say was "buy war bonds" now I think it's changing to "buy crypto"... And beans
I do think that tradeable skills and services will boom in value over the next decade or so - as jobs become scarce. Crypto and blockchain fit in well with this as trustless systems that allow people to buy and sell from each other with relative confidence.