Wormholes and Time Travel: Real Physics, Real Paradoxes
Physicists have long debated whether time travel could be achieved via wormholes. The piece traces ideas from Gödel's spacetime solution to Kip Thorne’s traversable-wormhole models that could permit timelike paths, while noting paradox concerns like the grandfather paradox. It explains self-consistent solutions and quantum treatment in which multiple outcomes coexist, yet Hawking’s chronology protection conjecture argues universal laws may prevent macroscopic time travel. The debate remains unsettled, balancing theoretical possibilities against fundamental physics safeguards.