“Pain Is the Only School-Teacher”
I don&#x27;t get his point. 
After all there is no need for a conscious  introspection from evolutionary perspective - not even for pain.
There is observable behaviour driven by events from the &quot;outside&quot; world. 
That all could easily be represented by a function of some input. 
No qualia needed. 
The truth behind this is that science has no grip on certain things. And these things are the central aspects of human experience. So all science can do is explaining consciousness &quot;away&quot;. Like Dennet (among others) does. 
Magicans that distract and redirect the focus away from the matter. 
It could be just an epiphenomenon.