by Stephen Hawking
Stephen Hawking excels at providing
complex scientific information and theory in an accessible manner.
His books are full of so many facts and mind blowing analysis that
it's often difficult to absorb. When dealing with the limits of
humans perception, he speaks about viewing much of the universe
through images from telescopes. This ultimately depends on our
perception of light and because light has a finite speed, we are
seeing mostly light that has traveled from a far distance.
Similarly, we do not know what is
happening at the moment farther away in the universe: the light that
we see from distant galaxies left them millions of years ago, and in
the case of the most distant object that we have seen, the light left
some eight thousand million years ago. Thus, when we look at the
universe, we are seeing it as it was in the past.
If this doesn't blow your sensory perception mind, I don't know what will.
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