You can never tell which way the train went by looking at the track.
Logic is a systematic method of coming to the wrong conclusion with confidence.
Whenever a system becomes completely defined, some damn fool discovers something which either abolishes the system or expands it beyond recognition. Technology is dominated by those who manage what they do not understand. If builders built buildings the way programmers wrote programs, then the first woodpecker that came along would destroy civilization. The opulence of the front office decor varies inversely with the fundamental solvency of the firm. The attention span of a computer is only as long as it electrical cord.