Is it true that someone could know all physical facts without knowing what it is like to see red? If so, would physicalism be refuted??

Describe Jackson's thought experiment about Mary and the black-and-white room.Explain Jackson's argument, boiled down to its premises. Introduce "qualia" and epiphenomenalism, as Jackson meant it, and show that if the statement is true, then physicalism is indeed refuted.Objection: Discuss the Acquaintance Hypothesis and how it undermines Jackson's argument.All good, but the main objection comes from Dennett: If Mary REALLY knew everything before her release, then there truly is nothing new she could learn. She should know exactly what to expect when seeing red etc.Analogy: ancient Greeks and irrational numbers. They were wrong, and Jackson is wrong.