What I’m thinking about today:

  • This article I read last night in the New Yorker, A Cybersecurity Firm’s Sharp Rise and Stunning Collapse.
  • I’d like to be able to do calculations in my head faster. Maybe when I’m done with Brilliant courses I can switch back to Lumosity? And I never finished the mental math course on Coursera. 

What I learned today:

  • How Humans See Data, John Rauser: Stacked charts and pie charts are never the answer!!! And this presentation about data visualization is worth watching 10 times.
  • Choiceology, Invisible Failures: Survivorship bias is the logical error that comes from focusing on people or things that made it past a selection process, without considering those that didn’t. An example of this is in finance – studying company performance, without including failed companies because they no longer exist.