These notes try to convince you that you understand what Physics is about and how things work.

References to the various blogs sprinkled among my vacation pictures.

"Civis" is concerned with civics, civility, and civilization. How can communities ensure their people freedom without chaos? How can communities coexist with sibling and surrounding communitees?

Humans are genetically predisposed to religious feelings. How have these feelings helped? How have they been exploited?

As a long-time go player, I've had a few things to say.

I've written lots of computer code in lots of languages. Here are some things I think you need to know.

I've put in here anything I wanted to say that didn't fit anywhere else.