Common sense is only an excellent guide if you want to predict specific kinds of things about the world. It breaks down once you leave the realm at which our senses operate (which includes national economies).
Morever, equating logic and common sense is to deny the recency of "logic". Humans reasoning like this, even if you want to take it back to the Sumerians, is a very recent development in human experience (probably).
> Biology is not a hard science.
OK. I wonder what all that lab time and experimentation was for that I saw when I was doing my PhD in computational molecular biology (never finished). I guess it was all just ... soft.
> centuries to find after almost everything else was well-explained by intuitive theories
Darwin would like a word. As would Mendel.
