posted on Mar, 16 2009 @ 04:43 PM
this is a confusing subject for many people, but it's very simple in essence once you understand.
you see the red supergiant star Betelgeuse in the night sky. Betelgeuse is located approximately 600 light-years away from your eyes. So, the image of
Betelgeuse you see, right in that moment, is Betelgeuse 600 years ago. The time the "image" you see took to travel from Betelgeuse to your eyes.
now you see a lightning hitting a tree. I'm 4 meters in front of you. the light travels to our eyes, but, since I'm in front of you, I will se the
lightning first. Of course that the distance its so small when you consider the speed of light that it seems we saw it both at the same time, so it
doesn't matter the gap between both our sightings, as it doesn't matter the fact that the light took a small fraction of a picosecond to travel from
the actual lightning hitting the tree to my eyes. That time is irrelevant due to it's insignificant value.
but, 600 years are not so irrelevant as 0.00001*10E-1024 picoseconds. At least not to a human. But, in an infinite universe, where time and space
can't be measured, 600 years are too irrelevant.
we are looking at the past, be that's just relative to our own measures and conventions. house-flies have a life-span of two weeks, so they could say
It ook much more time then *you* (a human) think writing this explanation. For you 5 minutes are not much, but for a fly that's a lot.
I hope you understood, and sorry for any mistakes I'm not english.