Our most valuable thoughts are often those that arise by chance at the moments we least expect them. There’s the brilliant business idea when you’re walking down the sidewalk, in no particular hurry to get where you’re going, merely taking in the sights and sounds. The drowsy midnight discovery that wakes you up from your pre-sleep hypnotic trance. The elevator epiphany. Traffic light insight. Bathtub revelation. It’s these random moments that are the raison