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I broke my rule of not reading medium articles, but how exactly does this prevent the grandfather paradox? Once you're back in time you can still stop yourself in the future from entering the worm hole...
Why have you sworn off medium articles? Is the quality too consistently low, or has medium as a company done something to annoy you?
Note that under our current understanding of General Relativity, wormholes will rapidly collapse under their own gravity so quickly that not even a single photon would be able to traverse it because it closes off. There's a theoretical way to stabilize it: put 'exotic matter' in the middle. Unlike all other matter, exotic matter has a negative energy density. This is the same sort of matter that would be needed to cr…
Note that under our current understanding of General Relativity, wormholes will rapidly collapse under their own gravity so quickly that not even a single photon would be able to traverse it because it closes off. There's a theoretical way to stabilize it: put 'exotic matter' in the middle. Unlike all other matter, exotic matter has a negative energy density. This is the same sort of matter that would be needed to cr…
Earlier quoted context omitted.
I exist in 2017. I go to 1978. I kill my other form before 2017 is reached. Therefore I cannot have traveled to 1978. What has occurred at each particualy moment is no longer consistent in a way that is clearly comprehensible by humans.
You have it backward. The only reason you managed to live into 2017 is because all the assassinations on your grandparents failed. The only thing that will happen if you try to go into 1978 is that you will discover why you failed.
Earlier quoted context omitted.
Where's the paradox? Given that a person has already appeared out of nowhere - matter/energy has been created - I'd say that having someone with identical genetic make-up to them running around is minor stuff.
I exist in 2017. I go to 1978. I kill my other form before 2017 is reached. Therefore I cannot have traveled to 1978. What has occurred at each particualy moment is no longer consistent in a way that is clearly comprehensible by humans.
1978: Some matter and energy materializes. It appears to be a human being. Where did it come from? It's impossible to tell; it has no past as far as we're concerned.
1978: Oh my god, the mystery human has just killed another human. They look kind of alike, I guess.
1978: The mystery human is now in prison; its lack of citizenship or identity ("yeah, born in 1952 my ass, you're clearly at least 50 years old") does not prevent its incarceration.
2017: Nothing of note happens. Mystery human would be eligible for parole, if he hadn't died behind bars in 1996.
Earlier quoted context omitted.
Where's the paradox? Given that a person has already appeared out of nowhere - matter/energy has been created - I'd say that having someone with identical genetic make-up to them running around is minor stuff.
But maybe when you go back you instantaneously become you? That would close the loop. The future you had essentially ceased to exist anyway so there's no reason to go back.
Earlier quoted context omitted.
Why have you sworn off medium articles? Is the quality too consistently low, or has medium as a company done something to annoy you?
I consider their quality to be consistently low. This one is basically a weak summary of a Wikipedia article or two along with some overzealous assumptions.
Earlier quoted context omitted.
Second law of thermodynamics https://en.wikipedia.org/wiki/Entropy_(arrow_of_time)
> The Second Law of Thermodynamics states that the state of entropy of the entire universe, as an isolated system, will always increase over time My understanding (which is very small) is that the multiverse theory takes care of not violating this law, since it’s not an isolated system.
Theoretically yes, but what they didn't tell you is that all those particles travelling through will completely lose all their information and order how they belong together. So please dear sci-fi authors stop with these ridiculous plots.