Quote:
Originally Posted by GregE
Indeed 
With respect to your other excellent points...
Something like a third of what we see in the night time sky isn't there anymore, while at the same time, there's just as much else that is but won't become visible from here for anywhere from another hundred to another million years.
Here's something else to ponder...
According to Einstein, if you travel fast enough, you go back in time. So, I suppose it's at least theoretically possible to visit those points of light in the sky that aren't there anymore, if your spaceship travels fast enough. Of course, once you return home from such a trip they'll be nobody to tell about it... because home won't be there yet.
Hey, who needs chemicals when you can twist your mind talking about this shit. |
Einstein never said if you travel fast enough you go back in time. That's just a lie/misinformation.
His equations actually prove that it is impossible to travel back in time!
However in a weird sort of way, you can travel to the future if you travel close to the speed of light. For example, I take off on a spaceship and set my clock, my speed is 50% the speed of light and I travel for 1 hour according to my clock. I might land and years might have passed from where I took off even though only 1 hour has passed for me.