Shadows of the Mind: A Search for the Missing Science of Consciousness
is a 1994 book by mathematical physicist
Human consciousness is non-algorithmic, and thus is not capable of
being modelled by a conventional
Contents 1 Argument 1.1 Mathematical thought 1.2 Objective reduction 1.3 Orchestrated objective reduction 2 Criticism 2.1 Gödelian argument and nature of human thought
2.2
3 See also 4 Notes and references Argument[edit]
Mathematical thought[edit]
Main article:
ℏ displaystyle scriptstyle hbar and G displaystyle scriptstyle G . It is an alternative to the Copenhagen interpretation, which posits
that superposition fails under observation, and the many-worlds
hypothesis, which states that each alternative outcome of a
superposition becomes real in a separate world.[3]
Penrose's idea is a type of objective collapse theory. In these
theories the wavefunction is a physical wave, which undergoes wave
function collapse as a physical process, with observers playing no
special role. Penrose theorises that the wave function cannot be
sustained in superposition beyond a certain energy difference between
the quantum states. He gives an approximate value for this difference:
a
This section needs expansion. You can help by adding to it. (October 2015) Gödelian argument and nature of human thought[edit]
Penrose's views on the human thought process are not widely accepted
in scientific circles (Drew McDermott,[7] David Chalmers[8] and
others). According to Marvin Minsky, because people can construe false
ideas to be factual, the process of thinking is not limited to formal
logic. Further, AI programs can also conclude that false statements
are true, so error is not unique to humans. Another dissenter, Charles
Seife, has said: "Penrose, the Oxford mathematician famous for his
work on tiling the plane with various shapes, is one of a handful of
scientists who believe that the ephemeral nature of consciousness
suggests a quantum process."
In May 1995,
The Emperor's New Mind Computational theory of mind Quantum mind Alan Turing, creator of the Turing test Orch-OR Notes and references[edit] ^ Minds, Machines and Gödel
^ a b Penrose, Roger (1999) [1989],
This article includes text originally by Philip Dorrell[permanent dead link] which is licensed under the GFDL v t e Works by Roger Penrose Books
Coauthored books
Academic works Techniques of Differential Topology in Relativity (1972) Spinors and Space-Time: Volume 1, Two-Spinor Calculus and Relativistic Fields (with Wolfgang Rindler) (1987) Spinors and Space-Time: Volume 2, Spinor and Twistor Methods in Space-Time Geometry (with Wolfga |