Long-Range Technological Forecasts
Donald L. Pyke · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 1972
There is an old story - probably familiar to most of you -concerning the group of blindfolded men who were positioned around an elephant. After having had an opportunity to sense the animal from his own particular vantage point, each was asked to describe it. As you will recall, there was a wide difference of opinion which stemmed largely from the "approach" which each took to the assignment.