Hacker News on 24 October 2015

• Stop forcing arbitrary password rules
• What PostgreSQL has over other open source SQL databases: Part II
• Andrew Ng on Life, Creativity, and Failure
• Dolphins often seem to want to befriend us
• Visualizing popular machine learning algorithms
• Mozilla Launches Open-Source Support Program
• Google CEO Sundar Pichai Brings in Less Egotistical Leadership
• FE-Schrift – forgery-impeding typeface
• Japan's hidden caste of untouchables
• The Plum-O-Meter: Weighing Plums Using 3D Touch in Swift