Has anyone seen my neutral pointer?

[bennyboy]

Look, if you insist that whatever we can experience is necessarily material, then crow about how we perceive things, and so they must be material, what knowledge is gained from this? I know about photons. I know we perceive them. What I don't know is whether they, or the framework they are in, have an independent objective reality. I really think we need to put this discussion on hole while you go watch a few Youtube videos about quantum erasers in double-slit experiments. Then we'll talk about what "material" really means, hopefully with more precision and less hand-waving. Or better yet, since you are so confident, ask Alex what "materialism" means to an educated physicist.