Hey guys I have a quick time travel question. Some people say that we will never be able to travel in time because if we were able to then someone would have already traveled back in time to tell us that it is indeed possible. They say that since this has not happened, then we will never travel in time. Personally, I think this is poor logic, but it raises a question. It is hard for me to put it into words. Like, say I invented a time machine and travled to the 60s and met Lennon before the Beatles were famous, that would be possible because the 60s have already passed. We are at the leading edge of time. I guess what I'm saying is how do we know that whatever is about to happen has not already happened? Like whatever happens next is unknown. If there exists a future in front of us, wouldnt that get rid of our "free will"? Like if there is a future that has already passed that contains a time when a time machine is invented, that means that whatever happens immediately next in my life has already passed and I have no control over. Or it means that our present has already passed. How do we know that we are the first time through whatever has happened? Argh, this is hard to write. Like, if we use the argument at the beginning of this post, how can we know that there even is a future, that we aren't the first set of whatever to pass through this time. We may be the future that indeed invents the time machine. Do you see what I'm saying?