[ethanbond]

TKP doesn’t suggest “non-physical information” exists. It suggests that some information cannot be relayed through means other than direct personal experience. When the actual blue light hits Mary’s retina, that is net new information, and information that could not have been conveyed by numbers on a monochrome screen. It is very obviously physical: the text “blue light has a wavelength of 450nm” conveyed in light at 700nm is a totally different piece of information that will be processed by the retina and the brain totally differently from an actual beam of 450nm light.

Critically: in either case the brain will process those photons hitting the eye with a combination of random and deterministic processes. This is a physical fact, not a thought experiment, and so I think warrants a stronger rebuttal than simply asserting, “this is absurd, and therefore we should reject it.” If it’s not a physical fact, explain what other non-random and non-deterministic process is happening.

What specifically is absurd? That your subjective experience disagrees? We can reliably and trivially produce all sorts of illusions in which your subjective experience loses touch with objective reality.