> Appeals to authority when the person isn't an expert in that field are terribly weak.

Hey, I agree. These were not as much appeals to authority as a reply to "your form of mysticism", just to get the focus off myself.

> Please give some concrete examples of what cannot ever be explained.

We can try it this way. We both look at a red apple. We both say it's "red". Can you device an experiment or some procedure to check wether we perceive red in the same way? Maybe what you see as "red" I see as "blue".

Please note that this is not about which pathways fire upon seeing a light of a certain wavelength. Just assume we are both healthy and same regions are activated when looking at red light. Is the experience of red light the same for both of us and how to prove it, or check it?