 The proposal is intriguing as far as it goes but, as Weisberg admits, in its current form, it does not go very far. For one thing, it is unclear how exactly explanatory considerations are to determine the weights required for the second step of the proposal. For another, it may be idle to hope that taking explanatory considerations into account will in general leave us with a manageable set of partitions, or that, even if it does, this will not be due merely to the fact that we are overlooking a great many prima facie plausible ways of partitioning logical space to begin with. (The latter point echoes the argument of the bad lot, of course.)