i'll have to watch it later as im just about to start work, but before even opening and watching the very beginning i always go back to something i read somewhere and the guy opened the video with that very same fact. although, i didn't realise it was beaches all over the world! that's even more mind boggling to comprehend! lol
This one blew my mind. For instance, you can cross the universe (sort of ) in a handful of years but, once you get there, the universe would be so old that you would be the only thing left. Or, you could go to the nearest star and back and have only aged about four years. On Earth, only about six years would have passed.
There are some questions raised but that's just my curious mind. Like if you go to the nearest star and back, do you consume four years of fuel or six?