What is observability engineering, and why do you need some? While at NDC in Porto, Carl and Richard recorded a .NET Rocks Live with Charity Majors, one of the founders of Honeycomb. Charity talked about her experiences trying to understand how complex applications worked and failed at scale over her years of experience at Facebook and other companies. Ultimately, those experiences led to a book and the creation of Honeycomb. Lots of fun insight from someone who has fought the good fight - and some great questions from the audience!