I liked how the author ties together multiple areas of research within the story of an old experiment. I appreciated that the author did not dumb down the Physics or dilute it. I have read about the history of quantum mechanics before, but I was still astonished by the depth of meaning and all the possibilities behind quantum mechanics and the results from the double-slit experiments. 'Mind-boggling' is too light a word to describe it. Kudos to the author for capturing the essence of this area of research while preserving the mystery.