# Unitarity forever? – in an expanding universe

[“Quantum foundations” series] I encountered a Wired reprint of a Quanta Magazine article which I’d flagged awhile ago; so, it’s time to write a new post. While reconciling Quantum Theory and General Relativity is an ongoing topic, I found this Quanta Magazine article interesting for its discussion of unitarity and Hilbert space. Although based on… Continue reading Unitarity forever? – in an expanding universe