Starting in 1977 I bought a new personal computer every three years. This changed after 2010 when I was 33 years and eleven computers into the trend. That’s when I bought my current machine, a mid-2010 13-inch MacBook Pro. Five years later I have no immediate plans to replace the MacBook Pro and I think that goes a long way to explain why the PC industry is having sales problems.

My rationale for changing computers over the years came down to Moore’s Law. I theorized that if computer performance was going to double every 18 months, I couldn’t afford to be more than one generation behind the state-of-the-art if I […]