A bit too technical for my knowledge but still interesting.
Interesting approach to puzzle-refactor an applcation instead rebuild it from zero.
Interesting even for those who do not use (yet :-o ) tests
Real cases explained in a fun way, presented in comprehensible English :-)
What I liked much was the Evolvability bug consideration.
Wery nice and original.
Fantastic talk!
Great great great talk!
As usual Fabien explained complex things in the simplest way possible.
Wow, it is since the university (a few decades) that I no longer felt these terms, but well used to present the problem.