In any event, I didn't know enough about the physical senses and their processes. And so I spent long days at that grand old pile, The New York Public Library (and other libraries) pulling up obscure scientific papers and technical papers regarding what was understood about the physical senses. About noon, I'd dash out into the street for coffee and a cheap frankfurter and often again for dinner. In the end, I had three thick folders of notes and technical references, and kept myself busy drawing charts and maps (one of my passions) regarding what was known about the physical senses. It's worth mentioning that I later took these folders to my office at Stanford Research Institute. They turned up missing one day, and were never found. I might have misplaced them, but the other option is that they were stolen. The intricacies of the biological senses are extremely astonishing and marvelous -- even so MAJESTIC that I am at a loss for words. And yet most of us just use them, not at all understanding at all how really incredible they are. But the ongoing "mystery" of the biomind's physical senses is dumbfounding, for as of 1972 (and since) a great deal was known about them -- except that WHY they should result in perception was and still is a greater mystery. For example, I've already mentioned, I believe, that every physical aspect of the biology of eye-vision is understood -- except why it should result in seeing.