you probably don't go all in, but try to find real assets that are not _too_ strongly correlated and are likely to have durable long term value. The most compelling answers I've heard are things like desirable real estate, commodities, or futures/contracts like water rights. Even then its not no equities, just a much lower allocation to minimize down side while still capturing some of the exuberant growth

Gold performed well in the 1970s - 1980s stagflation. That's why gold has gone up so much in the last few years - because people expect stagflation.

Real estate preserved value. However, I'm not sure that it will this time because population growth is not as strong as before.

another broken clock.

Invest outside the US or bet on de-dollarisation (e.g. central banks everywhere buying gold). Just make sure you're not left holding dollars.

Maybe gold? Crypto? Other economies like China or India?

Crypto? You're kidding right?

If there is a depression, no one can eat crypto. It's the first to go.