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Philosophers
Mortimer Adler Rogers Albritton Alexander of Aphrodisias G.E.M.Anscombe Anselm Thomas Aquinas Aristotle David Armstrong Augustine J.L.Austin A.J.Ayer Alexander Bain Mark Balaguer William Belsham Henri Bergson Isaiah Berlin Bernard Berofsky Susanne Bobzien Emil du Bois-Reymond George Boole Émile Boutroux F.H.Bradley C.D.Broad C.A.Campbell Joseph Keim Campbell Carneades Ernst Cassirer Roderick Chisholm Chrysippus Cicero Randolph Clarke Samuel Clarke Anthony Collins Diodorus Cronus Donald Davidson Democritus Daniel Dennett René Descartes Richard Double Fred Dretske John Earman Laura Waddell Ekstrom Epictetus Epicurus Herbert Feigl John Martin Fischer Owen Flanagan Luciano Floridi Philippa Foot Alfred Fouilleé Harry Frankfurt Richard L. Franklin Michael Frede Carl Ginet Nicholas St. John Green H.Paul Grice Ian Hacking Ishtiyaque Haji Stuart Hampshire W.F.R.Hardie R.M.Hare Georg W.F. Hegel Martin Heidegger R.E.Hobart Thomas Hobbes David Hodgson Shadsworth Hodgson Ted Honderich Pamela Huby David Hume Ferenc Huoranszki William James Lord Kames Robert Kane Immanuel Kant Tomis Kapitan William King Christine Korsgaard Keith Lehrer Gottfried Leibniz Leucippus Michael Levin C.I.Lewis David Lewis Peter Lipton John Locke Michael Lockwood John R. Lucas Lucretius James Martineau Hugh McCann Colin McGinn Michael McKenna Paul E. Meehl Alfred Mele John Stuart Mill Dickinson Miller G.E.Moore Thomas Nagel Friedrich Nietzsche P.H.Nowell-Smith Robert Nozick William of Ockham Timothy O'Connor David F. Pears Charles Sanders Peirce Derk Pereboom Steven Pinker Plato Karl Popper H.A.Prichard Hilary Putnam Willard van Orman Quine Frank Ramsey Ayn Rand Thomas Reid Charles Renouvier Nicholas Rescher C.W.Rietdijk Josiah Royce Bertrand Russell Paul Russell Gilbert Ryle T.M.Scanlon Moritz Schlick Arthur Schopenhauer John Searle Wilfrid Sellars Henry Sidgwick Walter Sinnott-Armstrong J.J.C.Smart Saul Smilansky Michael Smith L. Susan Stebbing George F. Stout Galen Strawson Peter Strawson Eleonore Stump Richard Taylor Kevin Timpe Peter van Inwagen Manuel Vargas John Venn Kadri Vihvelin Voltaire G.H. von Wright David Foster Wallace R. Jay Wallace W.G.Ward Ted Warfield Roy Weatherford Alfred North Whitehead David Widerker David Wiggins Bernard Williams Ludwig Wittgenstein Susan Wolf Scientists Michael Arbib Bernard Baars John S. Bell Charles Bennett Margaret Boden David Bohm Neils Bohr Ludwig Boltzmann Emile Borel Max Born Leon Brillouin Stephen Brush Henry Thomas Buckle Donald Campbell Anthony Cashmore Eric Chaisson Jean-Pierre Changeux Arthur Holly Compton John Conway E. H. Culverwell Charles Darwin Abraham de Moivre Paul Dirac John Eccles Arthur Stanley Eddington Paul Ehrenfest Albert Einstein Richard Feynman Joseph Fourier Michael Gazzaniga GianCarlo Ghirardi Nicolas Gisin Thomas Gold A.O.Gomes Joshua Greene Jacques Hadamard Patrick Haggard Augustin Hamon Sam Harris Martin Heisenberg Werner Heisenberg William Stanley Jevons Pascual Jordan Simon Kochen Stephen Kosslyn Rolf Landauer Alfred Landé Pierre-Simon Laplace David Layzer Benjamin Libet Josef Loschmidt Ernst Mach Henry Margenau James Clerk Maxwell Ernst Mayr Jacques Monod Roger Penrose Steven Pinker Max Planck Henri Poincaré Adolphe Quételet Jerome Rothstein Erwin Schrödinger Claude Shannon Herbert Simon Dean Keith Simonton B. F. Skinner Henry Stapp Antoine Suarez Leo Szilard William Thomson (Kelvin) John von Neumann Daniel Wegner Steven Weinberg Norbert Wiener Eugene Wigner E. O. Wilson Ernst Zermelo |
Scientists
Michael Arbib John S. Bell Bernard Baars Charles Bennett Margaret Boden David Bohm Neils Bohr Ludwig Boltzmann Emile Borel Max Born Leon Brillouin Stephen Brush Henry Thomas Buckle Donald Campbell Anthony Cashmore Eric Chaisson Jean-Pierre Changeux Arthur Holly Compton John Conway E. H. Culverwell Charles Darwin Abraham de Moivre Paul Dirac John Eccles Arthur Stanley Eddington Paul Ehrenfest Albert Einstein Richard Feynman Joseph Fourier Michael Gazzaniga GianCarlo Ghirardi Nicolas Gisin A.O.Gomes Joshua Greene Jacques Hadamard Patrick Haggard Sam Harris Martin Heisenberg Werner Heisenberg William Stanley Jevons Pascual Jordan Simon Kochen Stephen Kosslyn Rolf Landauer Alfred Landé Pierre-Simon Laplace David Layzer Benjamin Libet Josef Loschmidt Ernst Mach Henry Margenau James Clerk Maxwell Ernst Mayr Jacques Monod Roger Penrose Steven Pinker Max Planck Henri Poincaré Adolphe Quételet Jerome Rothstein Erwin Schrödinger Claude Shannon Herbert Simon Dean Keith Simonton B. F. Skinner Henry Stapp Antoine Suarez Leo Szilard William Thomson (Kelvin) John von Neumann Daniel Wegner Steven Weinberg Norbert Wiener Eugene Wigner E. O. Wilson Ernst Zermelo Margaret Boden
Margaret Boden's 2006 two-volume Man As Machine is an extraordinary history of cognitive science, a field, she says, that
would be better defined as the study of "mind as machine".Boden documents the transition in psychology from the behaviorism of B. F. Skinner (in which the mind was treated as a "black box" or a "blank slate" on which environmental stimuli make their impressions - behaviors being the mechanical result of some responses to stimuli being reinforced) to the new field of cognitive science in the 1960's. Cognitive scientists explore the mind as containing parts that can be analyzed as logical systems much like the parts of digital computers. This is a very powerful metaphor, which Boden captures in her title, but man is not a machine in the Newtonian sense, as the reductionist behaviorists assumed, and the mind is not a computer, although like a computer, it is an information processing system which acquires, creates, stores, and manages the information needed to guide the actions of its body. Machines that compute and communicate provide fruitful analogies and metaphors that help us to understand the mind. In her 1990 book The Creative Mind, Boden explored the conflict between physical determinism and creativity or the freedom that creativity implicitly requires. [Freedom] can be touched by science without being destroyed by it. A computational psychology can allow that much human action is self-generated and self-determined, involving deliberate choices grounded in personal loyalties and/or moral principles. Indeed, it shows us how free action is possible at all. To a significant extent, arguments defending freedom against science parallel arguments pitting creativity against a scientific psychology. Worries about predictability and determinism, for example, crop up constantly in such discussions. In either case, pure indeterminism gives mere chaos. To choose one's actions freely is not to hand responsibility over to the unpredictable...And in either case, predictability may be a virtue. One would not go for advice on a moral problem to someone whose judgments are not usually reliable, nor admire someone whose good deeds were always grounded in passing whims.On the other hand, Boden sees room for random events as bringing us thoughts, supporting the idea that our thoughts come to us, but our actions come from us. Thoughts triggered by chance events, in the environment or within the brain, may be fruitfully integrated into the psychological structures of the mind concerned.Boden distinguishes "absolute randomness" (such as quantum physics provides) from mere "relative randomness" which may be predictable but is adequately random in some context (for example, pseudo-random numbers). She is not convinced of quantum mechanics and its absolute chance. But she is optimistic that her "A-randomness" could be harnessed by creative computers. [Indeed, the latest Intel computer processing chips provide a purely random source of noise.] What is useful for creativity in minds and evolution is useful for creative computers too. A convincing computer model of creativity would need some capacity for making random associations and/or transformations. Its randomizing procedures might be A-random; for example, its instructions or associations might sometimes be chosen by reference to lists of random numbers. But they need not be: R-randomness would do. Indeed, some creative programs rely on random numbers at certain points, and genetic algorithms can produce order out of chaos. Moreover, some computer models spend their 'spare' time searching for analogies in a relatively unconstrained way. This computerized R-randomness could exist alongside more systematic (and somewhat more reliable) 'rules' for generating useful ideas.But Boden wonders whether absolute randomness exists and implies absolute unpredictability. An event that is unpredictable in the strongest sense is absolutely unpredictable ('A-unpredictable'), unforeseeable in principle because it is subject to no laws or determining conditions whatever. In other words, A-unpredictability (like A-randomness) implies indeterminism of the most fundamental kind. Whether there are any genuinely A-unpredictable events is disputed. According to quantum physics, there are. Quantum physics claims that some physical events, such as an electron 'jumping' from one energy-level to another, are uncaused and therefore (at that level of description) unpredictable. The electron jumps this way rather than that for no reason at all. In the terminology introduced above, each individual electron-jump is A/E-random (it has no order, and no explanation).Boden took up the subject of free will in her very first publication (Mind, 1959, v. 68, pp.257-8) Upholders of a free-will doctrine, rather than determinists, would, I think, want to claim a special sort of certainty in relation to decision-statements. They might not be prepared to say that we have free-will at all times, but would at least claim that there are many times when we can, by a free choice, direct our actions as we decide. Now if free-will is to be claimed at all, it is necessary that, at times when we exercise our free choice, we should do so consciously, and that we should have direct and incorrigible knowledge of what we are doing, in order that we may be held fully responsible for our voluntary acts. But in order to claim this incorrigible knowledge, and also to claim absolute certainty that our "act of will" will be followed by the appropriate voluntary act, a free-will theorist will have to distinguish between the voluntary instigation of a chain of events likely to lead to the desired result, X, and the later part of the chain, which is controlled causally. It is only over the first step of the chain that we can have control.In her massive Man As Machine, Boden says that "cognitive science showed a way out of the impasse" between determinism and indeterminism, "by sidelining the determinism/ indeterminism issue and focusing instead on the huge cognitive and motivational differences between humans, dogs, and crickets." But Boden goes on to approve Daniel Dennett's two-stage model for free will. We have found that Dennett's decision model, and his six basic reasons for supporting it, are more cogent arguments for free will than any libertarian thinker has developed! Unfortunately, Dennett is a determinist and compatibilist who does not subscribe to his own arguments. Boden writes that Dennett developed [his idea] in his essay 'On Giving Libertarians What They Say They Want' (1978b: 286-99), and especially in his book Elbow Room: The Varieties of Free Will Worth Wanting (1984a). This book was a philosophical analysis, deepened by a cognitive scientist's appreciation of computational architecture. (Many years later, Dennett would return to the topic — now, with a focus on the evolution of the relevant architecture: Dennett 2003a.) It provided a host of examples illustrating the psychological processes that underlie our freedom of action, and various (normal or pathological) restrictions on it. It made clear that only creatures with a certain type of cognitive–motivational complexity are capable of choosing freely. Or, rather, to choose freely just is to exercise those architectural features. In other words, determinism/indeterminism is largely a red herring. Although (Dennett argued) there must be some element of indeterminism, this can't occur at the point of decision — for that would give us a type of "free will" that's not one worth wanting. The indeterminism, then, affects the considerations that arise during deliberation. The person may or may not think of x, or be reminded (perhaps by some environmental contingency) of y — where x and y include both facts and values. The deliberation itself, by contrast, involves deterministic processes of selection, weighting, and choice. (Deterministic, but not universalist: moral principles, cultural conventions, and individual preferences are all involved.) For Teachers
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