If there is no coherent notion of physical or material, there is no notion of immaterial either. Chomsky talks about this at length in "The Machine, The Ghost a

If there is no coherent notion of physical or material, there is no notion of immaterial either. Chomsky talks about this at length in "The Machine, The Ghost and the Limits of Understanding" (previously discussed on HN here [1]). [1] https://news.ycombinator.com/item?id=26448901 https://news.ycombinator.com/item?id=26448901