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Core Concepts
Adequate Determinism Agent-Causality Alternative Possibilities Causa Sui Causality Certainty Chance Chance Not Direct Cause The Cogito Model Compatibilism Conceptual Analysis Control Could Do Otherwise Creativity De-liberation Determination Determination Fallacy Determinism Disambiguation Either Way Ethical Fallacy Extreme Libertarianism Event Has Many Causes "Free Will" Free Will in Antiquity Free Will Mechanisms Free Will Requirements Future Contingency Hard Incompatibilism Illusion of Determinism Illusionism Impossibilism Incompatibilism Indeterminacy Indeterminism Libertarianism Liberty of Indifference Luck Modest Libertarianism Moral Responsibility Moral Sentiments Naturalism Necessity Noise Non-Causality Pre-determinism Predictability Probability Pseudo-Problem Random When?/Where? Rational Fallacy Responsibility Same Circumstances Science Advance Fallacy Second Thoughts Semicompatibilism Soft Causality Standard Argument Temporal Sequence Tertium Quid Torn Decision Two-Stage Models Ultimate Responsibility Uncertainty Up To Us Philosophers Mortimer Adler Rogers Albritton Alexander of Aphrodisias G.E.M.Anscombe Thomas Aquinas Aristotle David Armstrong Augustine A.J.Ayer Mark Balaguer William Belsham Isaiah Berlin Bernard Berofsky Susanne Bobzien George Boole F.H.Bradley C.D.Broad C.A.Campbell Joseph Keim Campbell Carneades Ernst Cassirer Roderick Chisholm Chrysippus Cicero Randolph Clarke Donald Davidson Democritus Daniel Dennett René Descartes Richard Double Fred Dretske John Earman Laura Waddell Ekstrom Epictetus Epicurus John Martin Fischer Owen Flanagan Philippa Foot Alfred Fouilleé Harry Frankfurt Richard L. Franklin Carl Ginet Nicholas St. John Green Ian Hacking Ishtiyaque Haji Stuart Hampshire Georg W.F. Hegel Martin Heidegger R.E.Hobart Thomas Hobbes David Hodgson Shadsworth Hodgson Ted Honderich Pamela Huby David Hume William James Robert Kane Immanuel Kant Tomis Kapitan Christine Korsgaard Keith Lehrer Gottfried Leibniz Leucippus C.I.Lewis David Lewis John Locke John R. Lucas Lucretius Hugh McCann Colin McGinn Michael McKenna 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 Charles Sanders Peirce Derk Pereboom Steven Pinker Karl Popper H.A.Prichard Willard van Orman Quine Frank Ramsey Ayn Rand Thomas Reid Charles Renouvier Nicholas Rescher Josiah Royce Bertrand Russell Paul Russell Gilbert Ryle T.M.Scanlon Moritz Schlick Arthur Schopenhauer John Searle Henry Sidgwick Walter Sinnott-Armstrong J.J.C.Smart Saul Smilansky Michael Smith Galen Strawson Peter Strawson Eleonore Stump Richard Taylor Kevin Timpe Peter van Inwagen Manuel Vargas John Venn Kadri Vihvelin G.H. von Wright R. Jay Wallace Ted Warfield Roy Weatherford Alfred North Whitehead David Widerker David Wiggins Ludwig Wittgenstein Susan Wolf Scientists Margaret Boden Neils Bohr Ludwig Boltzmann Max Born Stephen Brush Arthur Holly Compton Abraham de Moivre John Eccles Arthur Stanley Eddington Albert Einstein Richard Feynman A.O.Gomes Joshua Greene Jacques Hadamard Martin Heisenberg Werner Heisenberg Pierre-Simon Laplace David Layzer Ernst Mach Henry Margenau James Clerk Maxwell Ernst Mayr Jacques Monod Steven Pinker Max Planck Henri Poincaré Erwin Schrödinger Herbert Simon B. F. Skinner William Thomson (Kelvin) John von Neumann Daniel Wegner Steven Weinberg |
Indeterminism
Indeterminism should be a failure in one or more of the many determinisms.
The term is most often used in connection with causal determinism and with limits on physical or mechanical determinism.
Logical philosophers describe indeterminism as simply the contrary of determinism. If a single event is undetermined, then indeterminism would be "true", they say, determinism is false, and this would undermine the very possibility of certain knowledge. 1
Some go to the extreme of saying that indeterminism makes the state of the world totally independent of any earlier states, which is nonsense, but it shows how anxious they are about indeterminism.
The core idea of indeterminism is closely related to the idea of causality. Indeterminism for some philosophers is an event without a cause. But we can have an adequate causality without strict determinism, the "hard" determinism which implies complete predictability of events and only one possible future.
Causality does not entail determinism
An example of an event that is not strictly caused is one that depends on chance, like the flip of a coin. If the outcome is only probable, not certain, then the event can be said to have been caused by the coin flip, but the head or tails result was not predictable. So this causality, which recognizes prior events as causes, is undetermined.
Indeterminism is also closely related to the ideas of uncertainty and indeterminacy. Uncertainty is best known from Werner Heisenberg's principle in quantum mechanics. It states that the exact position and momentum of an atomic particle can only be known within certain (sic) limits. The product of the position error and the momentum error is equal to a multiple of Planck's constant.
Indeterminism is important for the question of free will because strict determinism implies just one possible future. Indeterminism means that the future is unpredictable. Indeterminism allows alternative futures and the question becomes how the one actual present is realized from these potential alternatives.
The departure from strict causality is very slight compared to the miraculous ideas associated with the "causa sui" (self-caused cause) of the ancients.
Despite David Hume's critical attack on the necessity of causes, many philosophers embrace causality strongly. Some even connect it to the very possibility of logic and reason.
Even in a world that contains quantum uncertainty, macroscopic objects are determined to an extraordinary degree. Newton's laws of motion are deterministic enough to send men to the moon and back. Our Cogito model of the Macro Mind is large enough to ignore quantum uncertainty for the purpose of the reasoning will. The neural system is robust enough to insure that mental decisions are reliably transmitted to our limbs.
We call this determinism, limited as it is in extremely small structures, "adequate determinism." The world is adequately determined to send men to the moon. The presence of quantum uncertainty properly leads logical philosophers to call the world "indetermined." But indeterminism gives a misleading impression when most events are overwhelmingly "adequately determined."
There is no problem imagining that the three traditional mental faculties of reason - perception, conception, and comprehension - are all carried on deterministically in a physical brain where quantum events do not interfere with normal operations.
There is also no problem imagining a role for randomness in the brain in the form of quantum level noise. Noise can introduce random errors into stored memories. Noise could create random associations of ideas during memory recall. This randomness may be driven by microscopic fluctuations that are amplified to the macroscopic level.
Our Macro Mind needs the Micro Mind for the free action items and thoughts in an Agenda of alternative possibilities to be de-liberated by the will. The random Micro Mind is the "free" in free will and the source of human creativity. The adequately determined Macro Mind is the "will" in free will that de-liberates, choosing actions for which we can be morally responsible.
For Teachers
For Scholars
1. C.D.Broad, 1934 "Indeterminism, is the doctrine that some, and it may be all, events are not completely determined."
Oxford: "The view that some events have no causes." (sic), Oxford Dictionary of Philosophy, 1994, Simon Blackburn.
Oxford: Indeterminism means - "Determinism is false. Its negation is true - so long as somewhere in the universe some occurrence violates the thesis of determinism."
"an extremely strong version of indeterminism is...The world at any time and in all its aspects is totally independent of its state at any earlier time.", Oxford Companion to Philosophy, 1995, Ted Honderich.
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