 Fewer things.  Combinatorialism as it stands has no  problem accounting for the general intuition that there could have  been fewer things. We have already noted in   §2.3.3  and again in   §2.3.5  how our water molecule W, as such, might not have existed.  More generally, given the unrestricted nature of recombination, for  any a involving a structural fact S, there are  recombinations of the actual world wherein either (a) some of the  relations among a's constituents that are critical to  S's structure fail to be exemplified by those constituents, or (b) there are further states of affairs included by those  recombinations that act as spoilers for S. Consequently, the  combinatorialist seems to have no difficulty explaining how there  might have been fewer water molecules, humans, etc. 