That's so no matter how much knowledge we gain we can never escape the bad place to kill the Demiurge.
this post was submitted on 25 May 2026
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I remember finding out the shape of space isn't a vast plane of emptiness, but more of an ever growing sphere and that messed me up.
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besides the expansion of spacetime which is the correct answer, there's also nothing keeping two objects from traveling in opposite vectors each at 60% c. Frame of reference matters too
No, spacetime doesn't expand faster than light at any point. Its just that as you accumulate the new growth over a long distance, the farther objects appear to move away faster than light from our position.
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Nothing within the known universe moves faster then light, but the universe itself expands faster then light travels within it.
Fuck it, question that I had since 10 years old.
if I have a very long stick, and I flick it. what would happen to the tip? what if a laser pointer is used? at a certain distance, the beam would be moving (sideways) faster than light.
it might work better with a whip rather than a solid stick.
That’s where things get weird. The tip won’t exceed the speed of light. You could have a section near you moving at the speed of light and the tip will also be moving at c, because c is the limit.
If you were on a train moving at 100mph, and threw a baseball at 50mph in the direction of travel, then the baseball is moving at 150mph. But if you were moving at c and threw that baseball it would not go faster than c.
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The Information that the stick has begun to move takes time to travel through the stick. Kind of like bending, but not really.
The tip of the very long stick would still move at sub light speeds. Also, the atoms at the far end will not immediately know what your hand is doing at the other. The forces the atoms make on each other also travel at (sub) light speed.
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Since nothing can move faster than the speed of light doesn't it also mean that the universe cannot be expanding faster than 2c either?
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Well duh. When a thing moves away from another thing, that is moving at the speed of light, at the speed of light, you have speed of light time two!
You still have one speed of light, that's the Lorentz transformation
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A shadow can move faster than light too.