Gravitational waves provide dose of reality about extra dimensions

Re:Gravitational waves provide dose of reality about extra d... by Razengan on Monday September 17, 2018 @06:19AM (#18004586)

[Complete layman here.]

Could it also not mean that gravity is "just" a 3D (or 3+1D) phenomenon?

For example, what does gravity mean in 2D?

Can we rule out that our 3D† universe is not a rarity in a larger, 4D universe, much like how true-2D planes are a rarity in our 3D universe?

† D as in spatial dimension, excluding time.

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Re:Gravitational waves provide dose of reality about extra d... by whatshisface on Monday September 17, 2018 @07:43AM (#18004925)

If there are extra dimensions that gravity doesn't exit into, this experiment won't detect them. It is not curtians for string theory.

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