Macworld There’s a risk, if you do something for long enough, that you forget why you started doing it in the first place. And fail to realize that you’ve turned a once-useful activity into a cargo-cult ritual. Take the Apple special event. These used to be some of the most electrifying experiences in the tech industry. Start with a groundbreaking product launch (iMac, iPhone, MacBook Air), sprinkle in some Steve Jobs razzle-dazzle, and fill the auditorium with a crowd so whoop-prone they should be tested for pertussis, and the result is, well, magical. Why would you hold an event to announce …