4 ms·
If you can send information FTL it creates time travel paradoxes in GR. Gravity waves are a propagation of information, so if they moved at 1.0000001 times the
by ncallaway 4y ago
If you can send information FTL it creates time travel paradoxes in GR. Gravity waves are a propagation of information, so if they moved at 1.0000001 times the speed of light it would cause… the theoreticians to go ballistic, because it would either open the door for time travel issues, or something about GR is wrong.
At least, that’s my lay understanding of it.
So, nothing specific to gravity waves allows for backwards time travel, so much as anything that carries information traveling FTL would cause backwards time travel.
- newZWhoDis 4y agoThere’s zero experimental evidence to suggest this. I actually went down a fairly deep rabbit hole to try and get to why GR proponents believe > C travel allows for “breaking causality”. It basically comes down to a box plot mechanism they have breaking down when FTL is used, and is absurd. I’ve yet to see any evidence that FTL would break causality.