[tsimionescu]

> Everything else that comes in through the senses can be doubted, but consciousness is the only thing you are in direct contact with.

Every functioning human learns relatively early in life that certain experiences they have are simply fake - dreams, at the very least. Many people who suffer from hallucinations can also learn to trust that their own internal experiences are less valid than what others tell them is true.

Just as much, we may one day come to learn that our internal experience of consciousness is an illusion and that reality is we are all p-zombies. Of course, a physical theory of consciousness has to explain why and how we have this false subjective experience, but it's certainly conceivable that this might happen one day.