Today we’re going to cover two engineering groups at Apple: The Pinks and the Blue Meanies. The Mac OS System 6 had been the sixth operating system released in five years. By 1988, Apple was keeping up an unrealistic release cadence, especially given that the operating system had come along during the move to object oriented programming, and there were lot of increasingly complex problems trying to code around earlier learning opportunities. The fix was on some notecards. Here's what happened next.