I was thinking more in terms of a global supply issue in a complex interdependent system. A single countries hyperinflation does not really scale up to this as a good reference imho. Environmental issues could play havoc with global production by causing drought and a loss of productive farmland, among other things. This could lead towards increasing desperation and warfare causing further loss of production. If things get bad enough, I have my doubts that any asset class will survive, after all the sustainable production of modern goods and commodities requires a healthy ecosystem, energy and global trade.
From my understanding, the collapse of civilization is no guaranty that the weather systems will stabilize. Global average temperatures may raise even faster and we would have lost the ability to make significant changes through geoengineering.
I don't mean to be overly pessimistic but just clarify my statement on what would possibly destroy all asset classes. We do have wonderful technologies and ideas that could really improve things, so we really could be headed towards a much nicer future filled with increasing global cooperation.
The hyper inflation would certainly not be limited to the US, there is a lot of the same going on around the world. I do understand your point though. When my friends show me some of their potential survival gadgets that require batteries I always mentioned how Mad Max never used batteries lol. I would like to see a brighter future but I think that that is only possible if people come together to make that happen. Right now people are all going in different directions and mostly for selfish gain. There has to be a fundamental change in perspective to cause this willingness to get along. The experience that is going to cause this change in perspective is going to really have to be something...