Abstract

I argue that physicalists have been too conciliatory in granting that certain classic thought experiments about consciousness like Mary the colour scientist, colour spectrum inversion, and zombies provide strong prima facie support for epiphenomenal anti-physicalism. While these thought experiments may suggest that we are intuitive epiphenomenal anti-physicalists when taken individually, when they are appropriately combined, they suggest that epiphenomenal anti-physicalism leads to a version of phenomenal scepticism according to which (i) we cannot know how our states of phenomenal consciousness compare and contrast and (ii) we cannot know how our first-order beliefs about our states of consciousness compare and contrast. Insofar as comparative phenomenal scepticism is a deeply counter-intuitive view, our intuitions about consciousness are far more equivocal than they are widely thought to be. There simply may be no one metaphysical view that should qualify as their obvious champion.