A recent blog post by David Heinemeier Hansson titled "TDD is dead. Long live testing" sparked controversy earlier in the year, and led to a prolonged discussion involving luminaries such as Kent Beck and Martin Fowler. David is the creator of the Ruby on Rails framework, a skilled developer, and businessman. Emily think his criticisms of TDD deserve to be discussed, and it is worth asking questions about alternatives. In this talk she would like to present some of the arguments and help move the discussion on.