I think it was an article posted on HN a little while back that got me thinking about the time travel paradoxes that wormholes could enable. There was one thoug

I think it was an article posted on HN a little while back that got me thinking about the time travel paradoxes that wormholes could enable. There was one thought experiment about a wormhole with one end on your front lawn, and the other in a spaceship that leaves with your partner, accelerating away at 1g to eventually reach the speed of light, and at some point turning around and coming back. The way I envisioned it is that the wormhole would act like a Zoom call, where you could talk/interact at "normal" speed of time during the entire voyage. Through the wormhole on your front lawn, you'd see your partner arriving back in your front yard and greeting future you despite the fact that their ship was still years away from arriving back on your yard from your frame of reference. Not to mention that you could also step through the wormhole at that point and join the future you and your partner, and then the partner that would arrive on your original lawn would find you missing. Obviously this turns into spaghetti quickly. Now, this post is the first time I learn that travel within the wormhole must take longer than travel between the mouths of the wormhole. This got me thinking about whether my concept of looking through the wormhole was correct. Would you actually see your partner moving at "normal" speed, or would their movements appear to you to begin to slow down as they approached the speed of light, with your movements appearing to them to accelerate dramatically? It seems as if their EM radiation towards you would eventually shift to infrared or radio and yours towards them would shift to gamma? Have I made a total mess of my understanding of all of this? Apologies for the amateurish questions.