[ExI] Qualia/Consciousness

[Stefano Vaj]

On Dec 22, 2007 1:23 PM,  <citta437 at aol.com> wrote:
>       But neurons may be far more complicated than mere switches. If we
> look inside neurons and other cells, we see highly ordered networks
> (the "cytoskeleton") comprised of microtubules and other filamentous
> structures which organize cellular activities. Microtubules are
> cylindrical polymers of the protein tubulin arranged in hexagonal
> lattices comprising the cylinder wall. Cooperative interactions among
> tubulin subunits within microtubules have been suggested to process
> information, as in molecular scale "cellular automata". As the states
> of tubulin are controlled by quantum mechanical internal forces (van
> der Waals London forces), they may exist in quantum superposition of
> multiple states ("quantum bits, or "qubits"), and microtubules may be
> seen as quantum computers involved in cellular organization."

Mmhhh. Why neurons and not liver cells? Or eritrocites? Or dust
particles, for that matter?

And how comes that brains are unable to perform quantum computations at all?

Stefano Vaj