These days, we are surrounded by so much complexity that I'm getting quite often the experience of having to delve for a week into a subject so that I can sta

These days, we are surrounded by so much complexity that I'm getting quite often the experience of having to delve for a week into a subject so that I can start to appreciate which solutions are the most appropriate ones for the problem at hand. (And then a few years later I realize that quite a lot of that was still wrong, but at least I picked among the best solutions rather than the worst - see also the "getting on the latest fad" kind of mistakes...)