Physics, in a program like Daz, would neither be about trucks crashing into brick walls nor blocks and other props bouncing around on the ground. Physics in Daz would be about having that prop STOP when it came into contact with genesis’ hand because the prop connected with something. Physics would be about moving the arm and hand down to place on the hip and having the hand stop, (perhaps bend a bit more at the wrist if you kept pushing it), when it came into contact with that hip because the physics engine would tell the hand that it had reached a solid object.
Physics is a plug-in $125 add on in Poser I am not inclined to purchase because I have no confidence that it will work properly. The Poser people cannot even get their dynamic cloth to drape quite right. (It never looks right to me, Daz dynamic cloth looks much better when it works). Furthermore, Daz has mastered conforming clothing much better where poke-through is concerned than the inexpensive-but-still-more-costly-than-Daz Poser. Finally, in Poser, you can make certain you have set limits as often as you want and that leg will still rotate a half dozen revolutions or dislocate itself six inches from the hip. Although the problem is much lessened using Genesis in Poser rather than Posers own characters, (even their top of the line Miki4), still these things do not happen at all using Genesis in Daz. I am guessing that if Daz were to tackle the problem of physics, they would get it right. I would, therefore, readily pay for such a plug-in if it were available for Daz Studio. Why? Because it would seriously speed up the work flow.
And, yes, I admit I wouldn’t mind playing with it a bit!