3 ms·
> That said, any discussion of this theory should mention the rather puzzling issue that gravitation is nonlinear, and thus it would be impossible for there to
by d_tr 4y ago
> That said, any discussion of this theory should mention the rather puzzling issue that gravitation is nonlinear, and thus it would be impossible for there to be a superposition of worlds in each of which general relativity works as observed.
Are such superpositions not a thing in String Theory? How would gravity's nonlinearity preclude this? Quantum mechanics works fine with nonlinear systems like weird oscillators.
- ummonk 4y agoRe-reading my comment, I shouldn’t have said “impossible”. Yes, any theory that successfully quantizes gravitation will allow superpositions of gravitational worlds. String theory likely does this, though some will quibble with the phenomelogy as to whether it reproduces general relativity as we know it.