The Bactra Review Brainchildren
This last, as Dennett correctly says, makes the relationship between the
virtual Joycean/Jamesian machine and whatever it's implemented on non-trivial,
since it needs the correct sort of low-level noise to produce the right kinds
of variations. It is, incidentally, perfectly licit for algorithms to invoke
noise and randomness of specified sorts. For the details which make this
mathematically respectable, consult any good book on stochastic processes.