Our social institutions are premised on the theory that individuals are rational, about themselves and their choices, if not about the larger world. As evidence mounts that this is not true, what happens to those institutions -- to courts, elections, markets, medical care?
I think a lot will happen. Many of us have no problem accepting the news that we don't really know what we're doing as we make our choices in life. The trouble will come when this account of the mind collides with presumptions that organize our world -- presumptions, for example, that voters, stock traders and shoppers know how and why they make their decisions.
So when John Brockman's annual question at Edge.org turned out to be ``What Will Change Everything?'' I nominated the new models of the mind emerging from behavioral economics, social cognitive neuroscience, and other disciplines.
