I’m depressed right now, so don’t judge me.
If life was as the scientist told (no god, evolution of species, dinosaurs, big bang) I would go to the beginning of mankind, and kill the first human being ever to exist.
If I had full control of time, I would make sure that I REALLY killed the first man alive, moving to the future to make sure (no one really knows how we are here) if I found a chimp who started to look like human, I would kill him also, just to be sure. Then after moving to the future the humanity started to take care of their history, and didn’t find any roman empire, no pyramids, no Aztec or Mayan empire (sorry if I missed your favorite empire) , no sign of a human being, then I would return to 2005 (or the time I started my trip) and would visit all the world.
Then I would see the oceans with clean pure water, the ecosystems in perfect balance, Australia with its original species, the forests that became deserts for our own fault, would sleep seeing all the freaking stars in the sky everyone talked about, the weather in it’s real form, I think the trip would be entirely in silence, just interrupted by the wind in my ears, the water flowing or the animals. I would visit entirely America, Europe, Asia, Africa and Oceania, without need for a passport or someone keeping and eye behind a wall of steel covering an imaginary division.
No need for language, history, politics, recognition, justice, power, money or fame. No societies, no humanity
Then, just to remember me that I am human and if I was still alive from my trip, I would return to the place I was born, would be easy, I remember the maps, maybe it would look different without the buildings, the people, the noises. But I can remember the mountains, I know I could find them, once when I am covered by them, just chose one of them, if you go straight you find everything.
Everywhere is fine, If I found the extinct river every old people talked about, then I know I would know my home is like 4 blocks away, maybe at the time I would forget how big a block was, so anywhere is fine.
I would establish there, eating and drinking what nature could give, without modern medicine, and today’s food, I know I’m doomed, but what the hell, I could wait. Just to be sure that when I closed my eyes, no human being ever walked the earth again.
But again, that is if I had a time machine. Until then, enjoy the trip