When I'm learning something new I always struggle with my unknown unknowns: the things I don't know that I don't know. This is also a big topic in software testing. Because when you find no bugs, is it because they aren't there or is it because you don't know that you're looking at it the wrong way?
In this talk I will explain my troubled past with unknown unknowns, and how I deal with them. One spoiler: Ask a lot of questions. Questions about things everyone already seems to know. Also: ask things you already think you know.
You, the audience, also get to participate! We'll do a round of seemingly easy tasks to do together, where we'll find that it doesn't work at all! For a few brave souls I also have an assignment to do on the stage with me.
After the talk you'll be prepared to challenge things you think you know, and to face your unknown unknowns without fear.