Tbh, the best thing to do with a time machine is to just prevent humanity from appearing

Are you dense
We are the only sentient species in the universe
And we are the only species with the capability of making it better

"the only sentient species in the universe"

Elephants: crows: octopi: ants: dolphins:

Also have you considered the possibility of alien life

Also I was very clearly joking

are you f**king kidding me none of those are sentient, and even if they were (which they aren't) they don't have opposable thumbs like we do

Brother, an elephant killed a woman who hurt its family, and proceeded to trample her grave at a funeral

Even so, no other species compares in our ability to manipulate the environment

my brother in christ, we making it worse

at least some of us are actually trying
most other animals on this planet are selfish

Without Hitler we wouldn't have had the cold war

And without the cold war we wouldn't have a crap ton of the technology we have today

So... Through genocide and terror... Hitler second handedly gave us advanced technology, and we would still be about 50 years behind without it