In retrospect, a good candidate for demonstrating the peak of the boom may be yesterday’s announcement by Netflix that subscriber growth came in well below expectations during the second quarter: the number of subscribers was up by 2.7 million against expectations of 5.3 million. Worse, in its most developed market (i.e., the U.S.), subscriber numbers were actually down by 126,000, against an expected gain of 310,000. This marks the first time the company has ever seen a decline in U.S. subscribers.