Update: I published a post version of the talk, check it out.
These are some links and credits for my recent talk "Functional Core, Reactive Shell", also called "Pizza Driven Development".
Ken Scambler has done some great work in providing a constructive critique to mocks and stubs, and how to write code that doesn't need them.
Gary Bernhardt has been the first, as far as I know, to develop the idea of "Functional Core, Imperative Shell".
Without the work inspirational work of Ken and Gary my talk wouldn't have existed, and I'm very grateful to them for sharing those idea with the world on the internet.
All images where found using Google Images search. Thanks Google.