Film Club #2 - Coherence [Discussion]

[Angrboda]

In quantum mechanics, quantum decoherence is the loss of coherence or ordering of the phase angles between the components of a system in a quantum superposition. One consequence of this dephasing is classical or probabilistically additive behavior. Decoherence occurs when a system interacts with its environment in a thermodynamically irreversible way. This prevents different elements in the quantum superposition of the total system's wavefunction from interfering with each other.

I think, on the science side, the movie is about realities being "superimposed" upon each other via the quantum wave function, and in the movie, the comet causes the decoherence into a specific reality being broken revealing multiple simultaneous reality probabilities.