Cannabis enables nonmusicians to know a little about what it is like to be a musician, and nonartists to grasp the joys of art. But I am neither an artist nor a musician. What about my own scientific work? While I find a curious disinclination to think of my professional concerns when high – the attractive intellectual adventures always seem to be in every other area – I have made a conscious effort to think of a few particularly difficult current problems in my field when high. It works, at least to a degree. I find I can bring to bear, for example, a range of relevant experimental facts which appear to be mutually inconsistent. So far, so good. At least the recall works. Then in trying to conceive of a way of reconciling the disparate facts, I was able to come up with a very bizarre possibility, one that I’m sure I would never have thought of down. I’ve written a paper which mentions this idea in passing. I think it’s very unlikely to be true, but it has consequences which are experimentally testable, which is the hallmark of an acceptable theory.