- Patri Friedman (born July 29, 1976) is an American libertarian, anarcho-capitalist, and theorist of political economy. He founded The Seasteading Institute, a non-profit that explores the creation of sovereign ocean colonies.
- Incredible Moiré Patterns! (youtube.com)
Sir Roger Penrose demonstrates the extraordinary moiré patterns produced by overlaying and rotating two identical, repeating patterns. As the two patterns overlapped and rotated they interfere with each other to produce tertiary patterns.