1. Cracked makes an honest ad about the ways casual games are like crack for our brains. Video.
2. Chatbots built by Facebook engineers to negotiate with each other begin to develop their own non-human language. Time to re-watch Person of Interest.
4. M.C. Esher: Adventures in Perception: a 20 minute Dutch documentary about the way he created his work. Video.
7. The same song played on a $100 bass, a $700 bass, and a $10,000 bass. Which sounds best? Video.