3 ms·
Young physicist ‘squares the numbers’ on paradox-free time travel
- ablatt89 4y agoThe metrics that give rise to closed time like curves, wormholes, or the FTL metric (Alcubierre metric) don't seem really feasible given the constraints imposed on the stress-energy tensor. The paper seems interesting as it seems to attempt to apply what physics is observable assuming the metric that gives CTC exists, but I think the article is making too strong claims about time travel.