Hi David

Thanks for your post.  There's one thing I would need to ask before commenting much.

You say: "David Chalmers was kind enough to make a comment or two about the paper. He saw the most obvious difference is that 'tennis playing zombies' still have perceptual consciousness while' philosophical zombies' don't."

What do you think Chalmers means by "perceptual consciousness"?  Is it a kind of sub-species of consciousness? If so, wouldn't we need to know what consciousness is first?  Do you know what he means by "consciousness"?  (As far as I can tell, he has no satisfactory definition - though, of course, he's not alone in that.) 

DA