What have you changed your mind about in the past year?

[drwex]

I'm not swayed by arguments based on faith, can be moved by good logic, but am always swayed by a good experiment, even if it goes against my scientific beliefs.

Mark Morford's column a couple weeks ago pointed to this Edge.org list of things about which people have changed their minds. These people are scientists, professors, and professionals well steeped in their careers and their beliefs. But still open to change.

I've only started reading the list and it's fascinating. So I wonder, dear readers, what have you changed your minds about?