When someone suggests energy, fuel, fresh water are in danger of "running out", you should ask them to sketch what they think the supply curve is for those resources. They have something in common: a horizontal asymptote. With energy, it's a virtually inifinite supply at a price somewhere between 1-2x coal (nuclear fission) to a conservative 4-8x (solar) -- this for existing technology, today. For water, such an asymptote is desalination cost somewhere around 1-2x treated tap water. Similar stories for fuel -- EVs are one asymptote. In the left corner there's a short slope with a cheap, very limited resource (coal, petroleum, groundwater); then at a slightly higher price you have an infinite supply. I interpret this as saying, in the worst case, developed countries' crisis amounts to trivial negative economic adjustements ("trivial" compared to, e.g. everything else that happens through 2050...); and in the expected case, pretty unremarkable technology gains combine with massive economic growth give you far more, for far less. (The "optimistic" case is singularitarian...)