A weekly letter about the forces shaping how people see, and what to do about them.

Each issue begins with something specific and observable, then explains the mechanism producing it: what the research found, and what it stopped short of showing. From there the pattern gets followed wherever else it exists, through science, history, philosophy, and culture, where it has usually been documented before under another name.

Every issue ends in something to do. A philosophy that never changes behavior is intellectual entertainment.

Everything is cited, so nothing has to be taken on faith.