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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...
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.
I wouldn’t say it’s quality overall - many are well-written - rather that virtually none bring anything new to the table, have any insight into their subject. Something about the platform draws people whose goal is to write, not who have something to say.
Earlier quoted context omitted.
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.
Funny for me to read this, because I’d sworn off Medium articles too for the same reason, yet never heard other people talking about it. I wouldn’t say it’s quality overall - many are well-written - rather that virtually none bring anything new to the table, have any insight into their subject. Something about the platform draws people whose goal is to write, not who have something to say.
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...
What ever mechanism that prevents the paradoxical violations also makes this not very exciting (as far as time travel goes): you have to spend the "40 years" between you visiting one end of the wormhole and you entering the other at near-luminal velocity (hence you would only perceive it as 1 anyway). It's not so much "time travel" as an instant return ticket (where only your personal real time is spent, assuming your ship is exactly as fast as the one that carried the wormhole).
Which does actually have an interesting effect if you make them in pairs. It makes books like The Commonwealth Saga technically almost viable (e.g. where they build networks of portals and then just run trains through them non-stop to travel between worlds). Except that instead of using portals to explore new worlds, they would have to send a probe to those planets with a wormhole on board, at near the speed of light. And trips might cost you a bit of relative time to make a trip and return (e.g. the difference between the speed of light and the speed the probe delivered the wormhole from both portals added together would be how far in the relative future a trip would send you).
This all of course requires exotic matter which probably doesn't exist; which is why this whole thing probably doesn't work in the first place (e.g. why stable wormholes probably don't exist). Still might make it's own excellent sci-fi book if someone ran with the constrains of this, and it would technically be harder sci-fi than most.