They way we fed the computer overlords every detail of our lives before we knew they were sentient.

Assuming we don't meet a nuclear terminus, pretty much everything, is my guess. 😅

That we actually debated whether global warming was real.

Donald Trump is President. Can't get any worse or obvious ... can it?

Dick pics

Willful ignorance.... inaction...
everyone knew the ship was sinking, and everyone would rather go down with the ship than work together to right it

American gun culture.

Our actions or lack thereof.

Nothing. By then (if there is a future) people will be numb to everything. Especially murder. If something did horrify the future generations that would be a shock.

ankle boots

The fact that we have such a corrupt gov't and actors that clearly break laws AND NOTHING IS DONE ABOUT IT.

How cancer was treated

That we didn't kill them sooner.

The music

Our fucking stupidity