What is special about the speed of light? Why isnt it faster or slower?

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I sort of get the idea of how nothing can go faster than the speed of light but it always bugged me in the back of my mind and seems like it shouldn’t be how the universe works

In: Physics

13 Answers

Anonymous 0 Comments

We don’t know.

What we do know is that what’s usually called “the speed of light”, is better thought of as the maximum speed at which information can travel. Light can carry information, so it’s capped at that speed. So is gravity (if the sun disappeared, the earth’s orbit wouldn’t change immediately, it would take time for the change in gravity to reach us). But that just moves the question–why would the speed of information be what it is, and not some other speed?

There’s a Nobel prize for you if you figure it out.

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