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If you could travel to the Andromeda Galaxy at the speed of light, you’d experience arriving there instantaneously and all your friends on Earth would instantly be dead

submitted by Trope to ShowerThoughts 1 dayJun 13, 2025 01:27:31 ago (+3/-0)     (ShowerThoughts)

As anything moving at the speed of light does not experience the passage of time. Andromeda being roughly 2.5 million light years away.

How depressing.


20 comments block

Eh, but some principles (especially practical science) have fewer assumptions and tend to be reliable for making predictions.

The closest we have to testing the concept of time dilation is atomic clocks on moving planes. You get higher radiation at higher altitudes that can affect electronics. And yet alternatives theories on atomic clock desync is never explored?

Einstein subscribed to the concept of time dilation, which is more the reason to be suspicious of it. A concept put on a pedestal instead of being appropriately scrutinized.