The fathers of the field had been pretty confusing John von Neumann
speculated about computers and the human brain in analogies
sufficiently wild to be worthy of a medieval thinker, and Alan
Turing thought about criteria to settle the question of whether
machines can think, a question of which we now know that it is about
as relevant as the question of whether submarines can swim....
Turing tar-pit n.
1. A place where anything is possible but
nothing of interest is practical. Alan Turing helped lay the
foundations of computer science by showing that all machines and
languages capable of expressing a certain very primitive set of
operations are logically equivalent in the kinds of computations
they can carry out, and in principle have capabilities that differ
only in speed from those of the most powerful and elegantly
designed computers....
Turing tar-pit: n. 1. A place where anything is possible but
nothing of interest is practical. Alan Turing helped lay the
foundations of computer science by showing that all machines and
languages capable of expressing a certain very primitive set of
operations are logically equivalent in the kinds of computations
they can carry out, and in principle have capabilities that differ
only in speed from those of the most powerful and elegantly
designed computers....