Justin and Jason discuss Justin’s rebound project and the myriad questions Justin has about HFT (high-frequency trading), learning to code with CodeAvengers and CodeCombat, the latest on Operation Superhero and MV Code Club, scaling with Node.js at Uber, posting error messages to Slack and HipChat, scaling and managing servers at Digedu, Jason’s interview on Get Up and Code, why iXL didn’t work for the math team and how to setup a backup configuration using MySQL and EC2.