Justin and Jason discuss Justin's important meeting in Chicago, why SQL is agile, how FriendFeed used MySQL to store schema-less data and when normalized data will hurt you, Justin's experience with Uber, how Jason works with the Uber engineering team as an off-site contractor and how they scaled the Node.js-based dispatching system, Gabriel Weinberg's thoughts on orders of magnitude, how Justin is working with Udi on Digedu and why they chose the new PHP framework Laravel, why Jason wrote a RESTful API for Catalyst in PHP and why he thinks building web apps in Node.js is usually more trouble than it's worth, the upcoming Catalyst point system, the possibility of creating a WordPress pluggin for Pluggio, how Jason bought an Arduino at the local Radio Shack and while there heard about a local hardware super hacker who built a long distance surveillance microphone, the difference between Raspberry Pi and Arduino, how a judge dismissed a dealers' lawsuit against Tesla's retail stores, why Jason thinks Hacker News needs a prerequisite reading list, why Justin is worried that we're all getting stuck in our own social media silos, why you should pay attention to power law distributions and why you should look for things you can scale.