Hacker News on 14 December 2018

• Introduction to Applied Linear Algebra: Vectors, Matrices, and Least Squares
• CenturyLink is blocking customer internet, saying Utah legislators told them to
• UCLA asked faculty to consider declining to review for Elsevier journals
• Write Your Own Virtual Machine
• Facebook says new bug allowed apps access to private photos of up to 6.8M users
• SIPC Says It Has Serious Concerns About Robinhood's New Product
• How to Grow Old (1951)
• Remote code execution vulnerability in SQLite
• China’s Economy Slows Sharply
• Everything you should know about certificates and PKI but are too afraid to ask