I just watched most of this talk while a large C++ codebase was compiling, in the midst of trying to find one of many bugs caused by multiple interacting stateful systems, on a product with so much legacy code that it'll be lucky if it's sustainable for another ten years.

Like Bret's other talk, "Inventing on Principle", this talk has affected me deeply. I don't want this anymore. I want to invent the future.