time travel if possible, will be a long time. (Score 1)

What is the biggest hurdle for traveling backwards in time? 1. Records of the positions of everything in the universe from now till that point in history so it can be compared to the positions today and a non-moving point of reference in order to ensure you don't wind up inside a sun/blackhole. 99% impossible to obtain unless someone else has been keeping records other than Humans. What is the biggest hurdle for traveling forwards in time. 1. Records of the positions of everything in the universe from now till that point in the future so it can be compared to the positions today and a non-moving point of reference in order to ensure you don't wind up inside a sun/blackhole. 99% impossible to obtain unless someone else has been keeping records other than Humans. Unfortunately True. That shoots the concept in the heart because we don't have the computing power.