If light doesnt experience time, how do we know the light we are seeing is how those objects were…

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If light doesnt experience time, how do we know the light we are seeing is how those objects were millions of years ago and not how they currently are? if this is just me not understanding some concepts, let me know too, im just a curios person im not a scientist.

Reddit r/astrophysics·u/Worried_Flan4049·about 1 month ago

#know #light #seeing #doesnt #article #discussion

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This is probably a stupid question. But, like we dont know the speed light travels one way, we know how long the round trip takes right?, so how do we know we're not seeing things as they are? Do we know for sure photons behave like cars in a traffick jam? Like one goes out then the next and so on. Idk if im making any sense i apologize lol.

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If light doesnt experience time, how do we know the light we are seeing is how those objects were millions of years ago and not how they currently are? if this is just me not understanding some concepts, let me know too, im just a curios person im not a scientist.