Why wouldn't it just hook it into something like physx?

Google has made it clear that Genie doesn't maintain an explicit 3D scene representation, so I don't think hooking in "assists" like that is on the table. Even if it were, the AI layer would still have to infer things like object weight, density, friction and linkages correctly. Garbage in, garbage out.

	▲	Morromist 19 minutes ago \| parent [-]
		Google could build try to build an actual 3d scene with ai using meshes or metaballs or something. That would allow for more persistance, but I expect makes the ai more brittle and limited, and, because it doesn't really understand the rules for the 3d meshes it created, it doesn't know how to interact with them. It can only be fluffy-mushy dream images.