I think I thought it would be important for electronics as we knew it then, but that was a much simpler business and electronics was mostly radio and television and the first computers.
A theory has only the alternative of being right or wrong. A model has a third possibility: it may be right, but irrelevant.
The average man has a carefully cultivated ignorance about household matters - from what to do with the crumbs to the grocer's telephone number - a sort of cheerful inefficiency which protects him.

