Not on purpose at all, I've learned a lot from Uncle Bob. 50k talks is certainly not all of the talks ever, and there are many good talks not included in the 6 lists I've generated (which is a total of only about 230 talks). I'd like to add more filters to be able to hone in on top talks for different contexts.
50k is 50,000. Which is a lot of talks, but certainly not all of them. My abstract criteria for a talk being considered a "tech talk" is a live lecture given from the front of a room to a live multi-person audience with a subject matter related to computing. The 50k is just the number my hacky talk finder script found.