>I'd argue that it's also impossible for you to verify this fact. Who's to say that you don't just think you actually feel things >but in reality it's just your brain playing a trick on itself?

>Taking that further (and getting into the definition problem others have mentioned), who's to say there's any difference >at all between the delusion and the perception of experience?

Because to think such a thing way would be qualia in and of itself...