Abstract
This paper will be based on a Friday Evening Discourse which I presented to the Royal Institution in London, in January 1973. It is an attempt to relate how we see the world in three dimensions with how science infers the richness of physical reality from readings from instruments. We shall try to explain same phenomena of perception - including some perceptual errors or illusions - by comparing perception with haw science describes the world in terms of hypotheses. Perceptions will themselves be regarded as predictive hypotheses, set up by brain mechanisms. Like any other hypotheses, perceptions may be dramatically incorrect, and are perhaps seldom if ever completely adequate.© (1977) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
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