Without such «unitarity» quantum theory would produce nonsensical results such as probabilities that don't add up to 100 %. (sciencemag.org)
Instead of pointing to a universe in which matter comprised some 30 percent — the figure needed for the expected scenario of a universe expanding forever — his program seemed to mock him with a seemingly nonsensical result: negative 30 percent. (discovermagazine.com)
He argues that this creates nonsensical results, making enlightened advocacy and public debate impossible. (thewinnower.com)