  As far as algorithmic thinking is bound by symbolic paper-and-pencil
operations, the Church-Turing thesis appears to hold. But is physics, and even
more so, is the human mind, bound by symbolic paper-and-pencil operations? What
about the powers of the continuum, the quantum, and what about human intuition,
human thought? These questions still remain unanswered. With the strong
Artificial Intelligence assumption, human consciousness is just a function of
the organs (maybe in a very wide sense and not only restricted to neuronal
brain activity), and thus the question is relegated to physics. In dualistic
models of the mind, human thought transcends symbolic paper-and-pencil
operations.
