It would also stop much of the progress humanity made. Unfortunately, plastic is pretty much the cheapest and easiest solution for a lot of problems, specifically for packaging food and stuff like that.
You may very well travel back to a world that no longer can build that time machine.
You wanna fuck up the timeline? Somehow mess something up so plastic was never, and never will be invented. That would change sooooo many things.
It would also stop much of the progress humanity made. Unfortunately, plastic is pretty much the cheapest and easiest solution for a lot of problems, specifically for packaging food and stuff like that.
You may very well travel back to a world that no longer can build that time machine.
When the fork I use for lunch and throw away will outlast my civilization, I’m very much ok with destroying that technology.