Choose an arbitrary Generation N. Then let Generation N-1 be the next-older generation.
Generation N-1 says of Generation N:
“What’s wrong with Generation N? They aren’t as smart, they don’t work as hard. They have terrible manners, their clothes look stupid. Have you heard their music? Have you seen the way they dance? Terrible. They can’t speak properly to save their lives…
“Look at all that we’ve done for them, and they’re squandering it. All of it. I fear for the future of our society.”
So, Generation N < Generation N-1.
By a similar logic, we establish our base case: Generation 1 > Generation 2.
We can therefore conclude that human society peaked when Generation 1 came down from the trees, and has been monotonically decreasing in worth ever since. There has been no progress, ever, and our society’s eventual destruction is ensured.