The viscosity of hot water is much lower.

https://profmattstrassler.com/articles-and-posts/particle-physics-basics/how-the-higgs-field-works-with-math/

https://en.wikipedia.org/wiki/Curvature#Space

https://en.wikipedia.org/wiki/Manifold

https://en.wikipedia.org/wiki/Dimension

https://en.wikipedia.org/wiki/Curvature#Flat_space

Curvature is well defined for manifolds with any number of dimensions. “Flat” in this context means “zero curvature”, not “two dimensional”.

Yes. It isn’t hard to generate random numbers in hardware. It is hard to generate them very fast. This device would not help solve that problem.

They are not emitted simultaneously. The collision is messy. The GRB comes from leftover bits of neutron star.

Full levitation is not necessarily due to the Meisner effect either. It can be ordinary diamagnetism.

This intuition could be completely wrong

It isn’t.