Comment by selcuka

> The hard problem is Chalmers proof that physicalism could never be true.

This is not fully correct. His position has been "naturalistic dualism", that is, consciousness is a fundamental feature of reality alongside physical properties. In other words, he thinks that physicalism can explain consciousness, but not in the way standard materialists claim. He says that consciousness does not automatically emerge after a certain number of synaptic connections in the brain. There may be another fundamental, physical requirement for it to occur.