... I try to avoid any systematic approach to reading, pursuing instead a random method, one which depends as much on luck and accident as on design. I find this is also the only way to deal with the newspapers and magazines which proliferate in great piles around the house -- some of the most interesting articles turn up on the reverse side of pages I've torn out for something else.
Did you do research on ESP?
There really wasn't any research that was necessary to do. The story didn't require any and, since I have always been interested in the topic, I think I was as well informed as I needed to be. I hope that ESP and related psychic phenomena will eventually find general scientific proof of their existence. There are certainly a fair number of scientists who are sufficiently impressed with the evidence to spend their time working in the field. If conclusive proof is ever found it won't be quite as exciting as, say, the discovery of alien intelligence in the universe, but it will definitely be a mind expander. In addition to the great variety of unexplainable psychic experiences we can all probably recount, I think I can see behaviour in animals which strongly suggests something like ESP. I have a long-haired cat, named Polly, who regularly gets knots in her coat which I have to comb or scissor out. She hates this, and on dozens of occasions while I have been stroking her and thinking that the knots have got bad enough to do something about them, she has suddenly dived under the bed before I have made the slightest move to get a comb or scissors. I have obviously considered the possibility that she can tell when I plan to use the comb because of some special way I feel the knots when I have decided to comb them, but I'm quite sure that isn't how she does it. She almost always has knots, and I stroke her innumerable times every day, but it's only when I have actually decided to do something about them that she ever runs away and hides. Ever since I have become aware of this possibility, I am particularly careful not to feel the knots any differently whether or not I think they need combing. But most of the time she still seems to know the difference.