Alright, I’m usually into that stuff. But honestly what I described is probably the most realistic interpretation of time travel. Have you ever seen a tesseract? It’s a fourth dimensional cube at right angles to more cubes. If it were to pass through our dimension it would be a cross section of all of these cubes combined. Now visualize that but with a spherical ‘portal’ that looks like a black hole but isn’t. I think if time travel were to exist it would have something to do with gravity because gravity has an effect on time. Future you can go into the portal as many times as they like but will never cross paths with themselves because they are them. An observer from the past will see you come and go in the time span of a minute with changing cloths, because you on the other side can take months and years and still arrive at that point in time whenever they want. In the time span of a minute you’d look like a tesseract in the 3rd dimension changing sides almost, except you’d be changing cloths because it’s different yous from other times. Not saying the fourth dimension has anything to do with time travel, just a comparison of what going back in fourth in time would look like. The reason why we haven’t seen any time travelers is because there is no portal to connect our time to their portal. There must be two portals that connect and the very first portal will grant the ability for time travelers to come and go. There is a future hitler? Yeah someone is going to go back in time. It gets even weirder if you destroy a portal after a certain amount of time. I honestly can’t visualize that. Then there’s the issue where the universe is always expanding and moving forward in time. I mean you can’t just press rewind and revert to a previous state of the universe unless it was already recorded, sorta like the tesseract from interstellar in which moments of time are at right angles to each other. In interstellar I think they made time the fourth dimension but whatever, time is not spatial. But wait… wait… ok my head hurts now. If it’s proven that time is relative, and time is different like that of time around black holes. Maybe those splotches in time are actually in the past, being held by black holes. So that makes me think maybe to time travel you would just need to slow down the entire earth and speed up your time… wait no… I don’t think you can reverse time. Time is like speed, you can’t travel at negative speed. Always moving, you can stop at 0, but never backwards. There can never be two versions of you existing in different places in the universe, so the idea of time traveling you coming across yourself from the past cannot happen. This is why I believe time travel is NOT possible. The only time travel I think is possible is to slow down time around earth, and speed up time around it, then they bubble of time in the past can be revisited.

I think to solve the paradoxes that come from time travel, maybe when the portals are established, everything that enter and leave through it were destined to do so. I mean it would be really weird seeing future you acting the way they did, and then you wait for when you’re in the future and you repeat what you did but you do it differently because you saw yourself and thought “ I’m not going to move to talk the way I did then” so then you just changed the time Loop, you doing things differently changed how the air molecules were arranged in the room, before those molecules were circulating the room, but this time they exit through a vent somehow, and somehow contributed to a violent tropical storm forming and- ok enough of this. Unless wait, if the entire universe were an object, and let’s just say hypothetically the fourth dimension was time or somehow relating to time, you as a fourth dimensional being ( if you managed to survive in 4d because it doesn’t understand how to interpret a 3 dimensional being like us ) were to see all of space and time from the the very beginning of the Big Bang to the very end, you decide to plop into a certain time. The moment you interact with the universe, you will essentially be changing everything after that moment you appeared into. You’d see the universe change, and it sorta would look like OBS recording itself as you move around everything in the universe changed because of the new introduced variables. As you look back in the 4D you see reality change- you know what, sorry for going off on a tangent like this. Time is weird.