I’ve harped on this in my sidewinder and slide rule blergs, as well as older ones: very often, using a computard is a recipe for failure, and old fashioned techniques are more efficient and useful. The sidewinder guys at China Lake actually called this out in their accounts of the place going to seed: computers and carpets ruined the place’s productivity and most of all innovation. I’ve mentioned my own anecdotes of CAD failures, and the general failings of computers in a design cycle. This is a...