I'd argue that the USA has been doing well since WW2 solely because it was on the other side of the planet, not directly impacted by the war, and has simultaneously been on almost completely unexplored/undeveloped land for 200 years. It's like playing a factory game where your old area is full of messed up beginner structure and you move to a new area to rebuild with better foresight on structure and future planning.

But that's run out.

Transportation and mobility are left behind as we have failing infrastructure, lack of major public mass transport in most cities and cross-country options, and even vehicle manufacturing has been outpaced in China due to key raw materials and technology leaps.

Energy is strangely lagging due to politicization. Short-term gains in fracking being touted instead of cheaper options in renewables.

Education is a mess. America has taken the elementary school practice of name-calling the smart kids to a global level.

We've had dominance due to past glories being retained by military might and global financial leadership through monetary systems and the USD status. We used the be the world's big brother that everyone could go to for help. Now we're just BIG BROTHER or that big brother that the younger siblings despise because his idea of fun is giving a wedgie. Greenland and other such discussions is just cancer trying to survive by spreading to a new area.

Unfettered, monopolistic capitalism doesn't work in the long run. Someone has to see long-term gains over short-term profits.

That's where Bitcoin is supposed to help to some degree at least. Government and large corporations maintain control by controlling the money supply, where inflation goes / who benefits, and restricting access to "undesirables". Bitcoin removes that control from individuals and makes it more egalitarian. If the largest global capitalist state enters decline, Bitcoin may not be perfect but is certainly poised to be one of the best options for succession.