I am in the process of attempting to explain 'Time Travel' and its association to Einestein's Theory of Relativity as simply as possible but I run into some difficulties at the end which I had no difficulty understanding late last nite after a couple of Margaritas.
But here is the start of my simple (hopefully) explanation.
Let's assume that Ron and Grant and Tommy Wishbone are on a very distant planet and have made plans to attend the 2012 IFBB Olympia in Las Vegas.
Let's also assume that they only have two ways to travel from that distant planet to Las Vegas.
One mode of travel is by way of hopping on a light particle (picture it as a bullet traveling at 186,000 miles per second) and the other method of travel is by hopping on a neutron which travels at a rate of speed much higher than the speed of light. (For simplicity let's assume that the speed of a neutron is 300,000 miles per second.)
Ron and Grant decide to depart that distant planet at the same time on the same day, but Ron will travel at the 186,000 miles per second mode of transportation on a light particle and Grant will travel at 300,000 miles per second via the neutron mode of travel.
They both depart the distant planet at the exact same time but who will arrive in Las Vegas first.
Of course Grant will arrive there first but since he is traveling faster than the speed of light, he will arrive in Las Vegas before he left that distant planet and way before Ron himself arrives.
But here is the problem I am having! What the hell happens from Ron's perspective when Tommy departs the next day after Ron has departed and what the hell happens from Grant's perspective when Tommy actually arrives in Las Vegas.
This is the kind of shit they ask you in pre-QM tests to see if you qualify for further education within the area of QM.... so I have b een told and i hope I explained it correctly.
The end but very confusing result is that each traveling participant experiences the end result (the arrival in Las Vegas) somewhat differently due to 'relativity'.
And that's where I get completely confused, but I have been told that if you can understand three moves ahead in the game of Chess, this sort of problem will be no problem at all for you.
Any clarification would be appreciated because life is almost unbearable without knowing all this shit.