For reference, the oldest cave drawings we know of were made by neanderthals around ~70,000 years ago [0].
[0] https://www.southampton.ac.uk/news/2018/02/neanderthals-art....
[0] https://www.southampton.ac.uk/news/2018/02/neanderthals-art....
Sometimes I close my eyes and imagine I traveled back in time to the days of the Dinosaurs and just observed how the world was back then.
But I wonder if I'd be able to survive. The atmosphere, environment, microbes, etc, would be drastically different from what we've evolved to handle. Millions of years ago is a very long time!
Edit: Apparently microbes from millions of years ago would be so evolutionary distant that they might not regard me as host.
https://www.astro.sunysb.edu/fwalter/AST389/ASoundofThunder....
I'm hoping VR will help with this.