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Thread 1:
Is a speculation thread. People are wondering/and giving their own views. Will Physics run on DirectX 11, how ComputeShader will address physics. See post #9, nothing is clear to the posters, they themselves are speculating.
Thread 2:
I have contributed quite a bit to the 2nd thread. Which primarily is talking about Dx11 being multi platform. And will Aegia PhysX ever run on ATI boards. Arguing about why ATI does not offer Physics, and how well DirectX 11 will ramp up.
We all are under the misconception that Dx11 has its "own Physics Engine". It does not. It offers DirectCompute which can help and/or enable in Physics calculation, but solely as an entity it is not a Physics Engine in-built. It offers massive parallel processing, which is gold for Physics calculations.