Humans having the technology is irrelevant. Either it's possible, and always has been possible and has always existed, or is impossible, and will always be, and will never exist.
I mean, if time travel doesn't exist in this exact moment, then how could a future traveler get to this point in time? If a future traveler could travel back to now, then time travel must exist now and must be possible now, in order for the traveler to exist in the now.
If it ever gets to a point where it exists, either it exists in a way where it always exists and can travel back to anytime, or it would have to be a specific snapshot that we could return to.
I'm just theorizing how it could work, regardless of who controls it
Put simply: where would the knowledge of the tech to time travel come from? It can't come from someone in the future, that would cause a paradox. The knowledge has to hava some source at some specific point in time. And then travel before that specific point in time would be impossible.
If someone "invents" time travel in 2037, and uses the tech to travel to 2025 and someone from 2025 sees and and learns about it, then the knowledge only existed from the knowledge already existing.... who is the patient zero of that knowledge? If the traveler from 2037 could go back to 2025, then the tech has to exist in 2025 to receive the traveler.
Humans having the technology is irrelevant. Either it's possible, and always has been possible and has always existed, or is impossible, and will always be, and will never exist.
I mean, if time travel doesn't exist in this exact moment, then how could a future traveler get to this point in time? If a future traveler could travel back to now, then time travel must exist now and must be possible now, in order for the traveler to exist in the now.
If it ever gets to a point where it exists, either it exists in a way where it always exists and can travel back to anytime, or it would have to be a specific snapshot that we could return to.
I'm just theorizing how it could work, regardless of who controls it
Put simply: where would the knowledge of the tech to time travel come from? It can't come from someone in the future, that would cause a paradox. The knowledge has to hava some source at some specific point in time. And then travel before that specific point in time would be impossible.
If someone "invents" time travel in 2037, and uses the tech to travel to 2025 and someone from 2025 sees and and learns about it, then the knowledge only existed from the knowledge already existing.... who is the patient zero of that knowledge? If the traveler from 2037 could go back to 2025, then the tech has to exist in 2025 to receive the traveler.