A few days back (Dec. 26, a day traditionally associated with two turtle doves) I offered two arguments against mind-body dualism and promised a response to each of them. Soon thereafter, I responded to the first of them. I explained why I believe that an argument from naturalistic continuity would not necessarily render impossible an emergence at some period in paleontological history. BUT [to get to the promised argument against dualism] for well over a century now evidence has been building up that there is indeed causation, and one can make a case that the cause-effect arrow runs in only one direction. Neuronal electrical activity is the cause of whatever I may report about such ideas. In that context I didn't really review the evidence/arguments, but acknowledged that there are plenty of sources if you want to pursue them. If we believe that neuronal electrical activity is the necessary and sufficient cause of everything we tend to call 'mental,' we are left eithe...