Give quantum mechanics a chance: use relativistic quantum mechanics to analyze measurement!

At the time of publication of H. Everett’s Relative-State Formulation (1957) and DeWitt’s Many-Worlds Interpretation (1970), quantum mechanics was available in a more modern and adequate version than the one used by these authors. We show that with the more modern quantum theory, quantum measurement could have been analyzed along more conventional lines in a one-world cosmology. Bell criticized the Everett-DeWitt theory quite sharply in 1987 but this seems not to have affected the acceptance of the old quantum mechanics as the framework for analysis of measurement.