When will we cast off these false prophets!?

Ah, that's why "Line goes up" is so important to investors

And when the line goes does down, I go down on another line.

Let me have this

I mean if you count the US empire as let's just say 1945-2035 or so... That's a 90 year period with 1985 as the center point. Wolf of Wall Street is dead center of the American empire, if you are a pessimist.

Alternatively, if you are counting American history writ large, you probably assume there will be some semblance of the United States for at least another 100 years. Then if you count it from let's just say 1800-2125 then the center point is 1962.

Yes I think the 80s are plausibly the middle period.

Right now you probably consider before the Civil War as the "first" and until the Second World War as the second and everything since as the third. But I don't think a historical account in the future will necessarily think the same way.

The 'middle period' of the USA will probably refer to something like post-reconstruction or ~WWII until whatever really sets off their decline/balkanization. Could be nowish.