It’s not quite solving a great big puzzle in the sense of a jigsaw puzzle because a jigsaw puzzle has got very defined rules, and you merely have to search around for the right bits to go where, and you have certain rather broad principles to guide you. It’s much more… less well defined than that, in that you don’t even know that there’s going to be an answer, for example. And… and you… a lot of the information may be wrong. It’s as if… if you were given bits of several puzzles mixed together without being told they were mixed together. And then you had to have the idea, oh, maybe there’s more than one puzzle here and sort the bits out before you tried to put the bits together. It’s complications of that sort. Or you… you may be misled because somebody had taken out a… a piece and put in a false piece. In other words, you’ve got an observation which was misleading, and you have to… you have to get rid of that. So, it’s more complicated than just solving a puzzle. I’m sure there must be things in ordinary, everyday life which are comparable, but I’d be hard pressed to think of an everyday example.