Have you ever read about Oswald Spengler and his theories on societies?
To put it short, he believes that societies and civilizations are like living creatures - they are born, then go through many stages, get old and eventually die.
He argued that Western civilization reached its pinnacle at about 1700, and started degrading a century after and will meet its demise somewhere around 2000-2100.
According to him, signs of a dying society are
>large-scale urbanization
Absolutely, we're more centered in cities than ever before
>decline of birth rates
Europe is at 1.54 and going down, same for America
>individualism
Special snowflakes, so on and so forth
>secularity
Believers are at an all time low
>paid armies
Goes without saying
He also noted how art is in heavy decline, so lets take a look
>modern art
Literal lines on a blank canvas
>modern music
Glorifies twisted sexualities, use of drugs and murdering people
>modern architecture
Absolutely disgusting
So far his theory has upheld itself 100%. Also what is interesting is that the degeneration cannot be stopped in any way, and society will keep on crumbling. A new one will be born some time after, and that society will one day also die, just like ours and every society before it.