THE EMERGENCE OF TIME. “The problem of time vs. the emergence of time. Perhaps the most obvious difference is that the problem of time is mostly about time rather than space; while as we said in Section 1, we intend ‘the emergence of time’ to also cover the emergence of spacetime, and so space. At a technical level, the tendency not to dwell on a ‘problem of space’ stems from the fact that, as noted above, in constrained quantization, the momen- tum constraint —which, from a spacetime perspective, shuffles spacetime points within a given 3-dimensional spacelike slice—is much easier to deal with, conceptually and technically, than the Hamiltonian constraint, which is related, at least classically, to diffeomorphisms that map points from one spacelike slice to another.”
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linkedin post 2022-06-29 05:12:48
Nigel Fleming
September 21, 2022