system
Given the following post, respond as if you're commenting on Reddit:
human
I think time travel will never exist. CMV

The most fundamental argument...if time travel existed, then someone from the future would have come by now. Even if it did exist, something must be functionally wrong if no one from the past are allowed to know about it.

EDIT: A lot of people are getting into the technical jargon of "time travel". "Travel" in my definition is the ability to control direction and magnitude towards the destination, ie.) backwards or forwards, how much. Much like how when you jump off a building, you aren't "flying" downards, you are falling.
gpt
Well there are multiple possibilities on to why the common man hasn't come by now if there is supposed time travel.

Possibility 1.) Our generation is completely uninteresting and insignificant compared to the rest of history.

Possibility 2.) There is a code that prevents time travelers from revealing themselves and high regulation.

Possibility 3.) Multiverses, or the concepts of alternate timelines can possibly occur, where travelling into the past creates a new timeline separate from the first. Said time traveller can do anything without impact but our timeline would not be affected.