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Scary thought

So there's this theory that says it's possible that the vacuum we know may not be true vacuum. That instead of the void of spacetime being at its lowest energy state, it might be a false vacuum, like... instead of being a rock on the ground, we're like a rock resting on another rock, and we might "fall off." If that happened, true vacuum would propagate at the speed of light and destroy the entire universe.

The fact that true vacuum propagates at the speed of light is especially terrifying, because given the sheer size of the universe, it means this process might have been happening for a billion years already and just hasn't reached us yet!

In fact... isn't there a big, unexplained black spot on the background radiation map? Could that be true vacuum propagating? Could we already be doomed?

This was cross-posted from https://fayanora.dreamwidth.org/1442784.html
You can comment either here or there.

Comments

( 2 comments — Leave a comment )
kengr
May. 14th, 2019 07:52 pm (UTC)
No, there wouldn't be a black spot. Since the change would propagate at the speed of light, it would reach us at the same time as any change in the background.
fayanora
May. 14th, 2019 11:24 pm (UTC)
Oh. Okay. Phew.
( 2 comments — Leave a comment )

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