I have a little retirement fund, and I also think that if I focused too much on it, I would neglect enjoying our present level of civilization while it lasts. Y

I have a little retirement fund, and I also think that if I focused too much on it, I would neglect enjoying our present level of civilization while it lasts. You're the one arguing to absurdity (heat death of the universe), because it really does matter if for all intents and purposes one will likely not get to enjoy retirement investments due to social collapse. It's not a far away possibility, but very likely to begin within my lifetime. You see, it doesn't take depleting everything on the planet, but just enough so that the growth engine based on debt stalls. Inevitable conflicts will follow. Climate change is already causing considerable financial damage and instability, and that is only going to grow more pronounced. On the current emissions route, most of the land closer to the equator than Canada or New Zealand may be barely inhabitable by 2080 (At around +3 or +4 C). There's already trillions of dollars in property value at risk just from flooding that's basically certain in places like Miami, let alone whole latitudes. Some tangible investments will still be valuable, but the idea that the market will keep churning out monetary growth indefinitely is ludicrous. My investment hedge is only for very unlikely scenarios, such as plentiful fusion energy, or exponentially cheaper carbon capture being developed in time to prevent the global financial shock that will happen when the market realizes that whole latitudes of property value are simply disappearing in several decades, or that trillions will need to be spent to mitigate the natural disasters that are coming. It's not a one-day Rapture to expect, but decades of decline that await.