I have a dark secret. A compulsive behaviour that happens mostly late at night. It goes like this . . I'm reading something in a book or online when another book or author is referenced that sounds very interesting indeed. So I open up my buying app to add the title to my out-of-control wish list and then . . well, it's a blackout of sorts. A blur in consciousness where my limbic (emotional) brain races my neocortex (the rational bit) to the checkout, a purchase occurs and by morning I've...