The topics proposed were BDD, DDD and SOLID. Recently I've been reading the DDD book [Evans] and started to question the industry adoption of Object Modelling (Fundamental to DDD and SOLID principles). If people are willing I'd like to step back from the proposed topics and explore the value of Object Oriented thinking. Why is it important and why is it so frequently ignored? For me, this represents one of the fundamental pillars of the ALT.NET ideal.