eta is a phenomenally talented polymath, hacker, and computer programmer from the UK.  Today eta joined us to discuss her very fun project reverse engineering UK rail tickets.  This was a fun event with a reasonably big audience and lots of Q&A, and we really enjoyed it!  It was also a good example of the best possible outcome in hacking: you break something, you tell the people who made the thing, and they give you a high-five and fix it.  Thank you so much eta for speaking to us!  To learn more about eta's work, refer to her website here: https://eta.st/