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We can literally see into the past 13 billion years ago by building space crafts that collect microwave radiation, because we aren't as primitive as you may wan
by mr_mitm 3y ago
We can literally see into the past 13 billion years ago by building space crafts that collect microwave radiation, because we aren't as primitive as you may want us to believe.
- miramba 3y agoNo, not literally…presumably. You believe that the radiation you look at is that old, because you measure certain wavelengths and study ladders, but you can‘t really prove it. Proving that something is 13 billion years old is beyond the capabilities of us apes, at least at this point.
- mr_mitm 3y agoCan you really prove anything beyond your own existence? Descartes says no. Maybe all your senses are just an illusion.
- DrFalkyn 3y agoWe know that light has a finite speed. We've measured it. We know that speed is independent of the relative velocities between the litter and the observer. Again, we've carried out experiments and measured that as well