Remember when Apple’s stock traded at $7 a share? I do, because that’s when I sold my shares. Tech experts’ sage predictions had convinced me that the Mac would never make a dent in the PC market. As it turned out, the Mac didn’t need to make a dent, because Apple mutated its cute computer DNA into cute music players and phones that fit massive unfilled niches. Yet even the genius architect of this turnaround made faulty predictions sometimes. Remember the invention Steve Jobs said was going to be “bigger than the PC”? You may have seen a mall cop riding one recently.