Hacker News on 26 September 2015

• Show HN: I spent a year making an electro-mechanical prototype of a liquid clock
• Terence Tao solves the Erdős Discrepancy Problem
• The real anti-Facebook is good old email
• The Greatest Regex Trick Ever (2014)
• Utron: Go MVC framework for fast, scalable and robust database-driven web apps
• Lazy Redis is better Redis
• Clarifications about Redis and Memcached
• “Tsundoku,” the Japanese Word for the New Books That Pile Up on Our Shelves
• Always bet on text (2014)
• I mine for 100-year-old jeans