Given a text, write a compressed version of it in a single sentence.

I turn next to an outsider's grounds for doubts about some of the core propositions of quantum mechanics. Roland Omnes, in The Interpretation of Quantum Mechanics, is at pains to argue that decoherence is the plausible route to classicity.
in The Interpretation of Quantum Mechanics, is at pains to argue that decoherence is the plausible route to classicity.