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If time travel were to exist, which theory would you subscribe to? (lemm.ee)

submitted 4 days ago by ramble81@lemm.ee to c/asklemmy@lemmy.world

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Some ideas are:

You branch off into another timeline and your actions make no difference to the previous timeline
You’ve already taken said actions but just didn’t know about it so nothing changes
Actions taken can have an effect (so you could suddenly erase yourself if you killed your parents)
Only “nexus” or fixed events really matter, the timeline will sort itself out for minor changes
something else entirely

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[-] sumguyonline@lemmy.world 1 points 3 days ago

Wormholes. Travel some place faster than light and see light from the past from your source of travel when you arrive, travel again back to your original spot and theoretically you travel backwards in time to before the light from the past that you just saw was even produced yet. Might work the same for just seeing the future if you glimpse through a wormhole that leads to someplace in the future by doing an Allie oop to further into the future someplace far away, then back to someplace in your future but your destinations past. Speed and gravity both impact time. A wormhole fits that description to a T.

[-] sumguyonline@lemmy.world 1 points 3 days ago

Only 1 timeline matters. You're own. Everything else becomes fluid around your timeline when you time travel.

[-] sumguyonline@lemmy.world 1 points 3 days ago

The timeline IS fragile, but the whole of existence is not in regards to time travel. If you go into the past and change it, the timeline changes, but only because the original timeline had you going back and changing it. You can see yourself. You can interact with yourself, but if everything is exactly as it should be you really don't want to go mucking around and find yourself in a world where the south lost the civil war but things are thousands of times worse and you killed the ancesotor of the inventor of time travel after breaking your machine and can no longer access the timeline to fix any issues you may have caused.

this post was submitted on 02 Jan 2025

153 points (95.3% liked)

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