So he makes Harry enthuseabout thumos seemingly incidentally in the course of a discussion of an altogether different subject, subtly encouraging the reader to take the idea on, but without endorsing it as part of the official, science-based picture.
When you watch Jony Ive enthuseabout the chamfers and the microns in the official Apple video that was shown at the launch event on Wednesday (see above), you are hearing the implicit backstory of not just how the device feels in your hand but how it makes you feel about yourself.