The machine had crossed a critical barrier. It is an abstract entity or process that has found physical expression, that has been 'realized'. It can do no more. Dualism vs. Monism. Descartes, mind-body split, AI, etc.
Dualism divides the universe into two types of substance, material and mental.
The laws of nature only apply to material substance. Mental substance acts according to a will of its own, human free will. We talk about the mind in such a way as though it is in the same category of things as the body, and from this we deduce that there are two worlds, the mental and the physical. B.F. Skinner also used behaviorism in an asssault on Cartesian dualism . The important point about Ryle's argument and work by psychologists such as Skinner was that they dragged the mind out from behind the veil of dualism and into the domain of scientific reality.