I fear we are nearing towards the next revolution where the Uber wealthy are removed from their wealth.
5% and your argument would make sense. but besides revolutions, I think it’s hard because of variance to hit +5% 1000 times in a row and never -99%. you only need 10 bad years at -10% to go down 99%. from there to get back up you need a 10.000% and that’s not gonna happen.
the best bet as a theoretical thought, would be to buy useful natural resources and hide it in many different jurisdictions, as well as buying land.