Mark Twain:

There is something fascinating about science. One gets such wholesale returns of conjecture out of such a trifling investment of fact.

If this is true of all science, it is doubly true of social psychology.

At its best, social psychology is an unmatched window into human motivations, a "look under the hood" of the way people talk and act. The best research in social psychology is as well-supported as anything in physics or biology, and much more intuitively comprehensible. This is why it's one of my favorite scientific fields.

But at its worst, social psychology is a flamethrower. People grab hold of it to try to fry their political opponents, then end up lighting their own hair on fire or burning down half a city. Because social psych is really hard to do right.