The Importance of Geopolitical Change

I have no firm prediction on what the end of the US looks like. It's possible that we'll reach some sort of singularity long before that, but it may happen sooner than we imagine. Ukraine has shown that Russia is more reluctant to use nukes than I previously thought. But just because Russia hasn't used them yet doesn't mean they will never use them. China is rapidly expanding its nuclear stockpile with unprecedented speed. In other words, nukes are not going away. What do things look like in 20 years? How about 50? No trend seems to be headed in a good direction.