As you go up the ladder of the sciences from physics to chemistry to biology and eventually to economics, sociology, psychology, anthropology, etc., things get

As you go up the ladder of the sciences from physics to chemistry to biology and eventually to economics, sociology, psychology, anthropology, etc., things get harder, not easier. While often described as one of the so-called "hard sciences", physics is one of the easiest sciences. Physicists are able to make all sorts of simplifying assumptions and get away with it. Such is not the case for the so-called "soft sciences", which are by far the harder sciences. If you have any suggestions of how to make fields like psychology any easier, I'm sure many would like to hear them. See Herbert Simon and P.W. Anderson for more reading along these lines.