  About ten years ago, Itamar Pitowsky and I wrote a paper, 'Two dogmas about
quantum mechanics,' in which we outlined an information-theoretic
interpretation of quantum mechanics as an alternative to the Everett
interpretation. Here I revisit the paper and, following Frauchiger and Renner,
I show that the Everett interpretation leads to modal contradictions in
'Wigner's-Friend'-type scenarios that involve 'encapsulated' measurements,
where a super-observer (which could be a quantum automaton), with unrestricted
ability to measure any arbitrary observable of a complex quantum system,
measures the memory of an observer system (also possibly a quantum automaton)
after that system measures the spin of a qubit. In this sense, the Everett
interpretation is inconsistent.
