 The scientific evidence is even less decisive with respect to whether there is the kind of indeterminism located in exactly the places required by typical incompatibilists. Unless there is a complete independence of mental events from physical events, then even for free decisions there has to be indeterminism of a specific sort at specific junctures in certain brain processes. There are some interesting speculations in the works of some incompatibilists about how this might be so (see, e.g., Kane 1996b: 128–30, 137–42, and the sources cited there), but our current understanding of the brain gives us little evidence one way or the other about whether it is in fact so.