OK all well and good but I think this is flawed because I don’t think speed has anything to do with time travel why? if I ride my bike to work rather than walking I am going faster I arrive quicker I don’t go forward in time. Time doesn’t go any faster or slower for me. if someone was walking and I was riding they would have to meet me there and they would arrive after me but i haven’t went backwards of forward in time.... k so what does that mean if i traveled at let say light speed to get to a planet let say it takes 12 years at light speed but at our current speed it would take 1000 years or whatever the fact is back on earth 200o years would not have passed 12 years would have passed, like my bike journey I get there in 8 minuets the walker gets there in 35 minuets. 8 minuets have passed not 35 minuets i haven’t skipped time...So how long to Andromeda at 1g using Newton's theory? We will add the condition that we wish to stop when we get there, if only to turn around and come back. The best time we can make is achieved by accelerating for the first half of the journey and decelerating for the second. The total time for the trip can be calculated to be some 2,065 years. Rather a long time really. Consider the same journey in an Einsteinian Universe. We now have a limited maximum speed (the speed of light), which at 1g is reached in 30,000,000 seconds, or a little under 354 days. After we reach this speed, how much longer will it take to reach Andromeda? The answer is no time at all! For the distance to Andromeda will have shrunk to zero for the spacecraft. However to the people back on Earth a considerable length of time would pass: some 2.2 million years

Superman spinner the world round faster wont change time as well it would just make day and night quicker but time itself would remain the same but time as we know it would change. What are your thoughts...?

I think we could go back in time or forward in time if we found a black whole nothing else maybe.... :???: