Full Idea
Macroproperties can, and in general do, have their own causal powers, powers that go beyond the causal powers of their microconstituents.
Clarification
E.g. frozen water molecules being slippery
Gist of Idea
Properties can have causal powers lacked by their constituents
Source
Jaegwon Kim (Mind in a Physical World [1998], §3 p.085)
Book Reference
Kim,Jaegwon: 'Mind in the Physical World' [MIT 2000], p.85
A Reaction
I don't see why the macro-powers 'go beyond' the sum of the micro-powers. Admittedly one molecule can't be slippery, but slipperiness can be totally reduced to molecule behaviour.