I read an article that stated that theoretically, we could "ride" the fabric of space like a wave, allowing us to travel extremely fast. It said that the highest speed achievable currently would be the equivalent of .7 the speed of light. It's believed that space expands faster than light, so, theoretically, we could travel faster than light. (you're not actually moving at the speed of light, you're using space to move, so you're not breaking any laws of physics) That got me thinking that if we used this form of travel, then looked back, we could see ourselves taking off. Or you could go farther and see, say the Revolutionary War. Or watch the beginning of Earth. The possibilities are endless, and would allow us to make ten-fold the amount of discoveries than in all of human history.