I am looking at the whole thing and see something quite different. I see the Post WWII world order ending.
I do not know what the next order will look like, nor do I know when it will appear.
I will note that the time from the fall of the Roman Empire to the rise of the west is measured in centuries not decades. For most of that time, the world that Rome had ruled was much worse off without Rome than with it.
On a shorter time frame, the fall of the Austro Hungarian empire did not make life great in its territories either.
The only outlier to bad outcomes after the fall of an empire is the fall of the British Empire. This is of course because the USA rose up in its place. I will note that many, especially African colonies faired poorly after the fall of the British Empire.
What I am saying is that there may be no recovery this time. From 1929 we breached the Dow Jones high in 1952. (However, this is a nice analysis that says someone that invested in 1929 at the peak would have recovered their money by 1936.)
The bear market that started in 1966 was much worse. If someone had invested at the peak, the real return after inflation was 0 in 1982. 17 years, no gain.
But I am pretty sure that if you check whatever the Austro-Hungarian market was, or whatever the Roman market was, it never recovered.
Never is a long time. On the other band the rise of the west is now 750 years old.
Just in case someone book marks this post, let me be clear. I am not saying the west will fall. I am saying it looks like the time of the west ruling the world MIGHT be at hand.
Cheers
Qazulight