It isn't just 'fall to the ground in a pile of goo' type of dynamics. :) As face_off alludes, you can do normal keyframed animation until the critical point where the figure needs to react physical circumstances (dynamics). This could be falling down a staircase, being hit on the head, slipping on ice, being slapped, hitting a wall, and on and on. Anything where Newton would be proud to be named - 'For each action there is an equal and opposite reaction'. I'm amusing myself right now with a simple ball (Sphere) bouncing down steps (a set of 'immovable' Boxes). Yeah, I'm easily amused... ;0) But it's much less expensive than Endorphin and Cinema 4d Dynamics, as far as I can tell, doesn't have this level of 'Ragdoll' figure dynamics at all. Definitely worthwhile for animators or those looking to get stills of action that look convincingly realistic.

C makes it easy to shoot yourself in the foot. C++ makes it harder, but when you do, you blow your whole leg off.

 -- Bjarne Stroustrup

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