Criticisms of materialism and dualism

Change of Reduction
A complete physical description of a person will miss out crucial parts of being human.
Mary's Room example -
Black and white world but can understand Red. Even though she's never seen it. She's missing out the experience of red.

Free Will
If we're entirely physical, there's no room for free will.
It's an illusion (hard determinism)

How do the body and soul interact?

The problem of interaction.

Unless the dualist can solve this issue they lack plausibility.