# Time reversal

1. Nov 29, 2014

### ubergewehr273

Is it possible to reverse time?
According to special relativity, time slows down as one approaches the speed of light and completely stops when one travels at the speed of light, which is exactly $c$. Then if one travels faster than the speed of light, is it possible that time will reverse or rewind ?

2. Nov 29, 2014

Staff Emeritus
One cannot travel faster than light.

3. Nov 29, 2014

### Doug Huffman

Nor can time be reversed. Time is not space like.

4. Nov 29, 2014

### ubergewehr273

I just proposed that in a hypothetical scenario, if one could travel faster than light speed then is it possible for time to get reversed ?

5. Nov 29, 2014

### Doug Huffman

If, in your FTL time-vessel, you had broken a tea cup, when precisely would it reassemble itself? The arrow of time is the arrow of cause and effect.

6. Nov 29, 2014

Staff Emeritus
If you're just going to make stuff up, you can make up anything you like. What would happen if squares had five sides? What would happen if people had wings? Unfortunately, when you do so, you have left the realm of science.

7. Nov 29, 2014

### GTOM

8. Nov 29, 2014

### Staff: Mentor

On that note, it is time to close this thread.