Thought experiments have played a central and significant role across a broad spectrum of philosophy and science, clarifying and solving complicated puzzles, problems and ideas in the ‘laboratory of the mind’. This book offers a unique capsule history, inviting readers to participate actively in a surprisingly powerful and fruitful tradition.
Vivid examples from this fascinating history make up the heart of the book, including Newton’s Bucket, Lucretius’ Spear, Salvatius’ Ship, Plato’s Cave, and of course Wittgenstein’s Beetle. Each experiment is followed by a discussion offering possible inferences and consequences.
In the final section, Cohen examines the method of thought experimentation suggesting key points for those wishing to harness its power for new explorations.
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About the Author
Table of Contents
List of Figures vii
Introduction: Deep Thought – a brief history of thoughtexperiments 1
A is for Alice and Astronomers Arguing about Acceleration 15
B is for Bernard’s Body-Exchange Machine 18
C is for the Catholic Cannibal 20
D is for Maxwell’s Demon 25
E is for Evolution (and an Embarrassing Problem with it) 28
F is for the Forms Lost Forever to the Prisoners of the Cave30
G is for Galileo’s Gravitational Balls 33
H is for Hume’s Shades 37
I is for the Identity of Indiscernibles 41
J is for Henri Poincaré and Alternative Geometries 45
K is for the Kritik and Kant’s Kind of Thought Experiments48
L is for Lucretius’ Spear 52
M is for Mach’s Motionless Chain 55
N is for Newton’s Bucket 58
O is for Olbers’ Paradox 62
P is for Parfit’s Person 65
Q is for the Questions Raised by Thought ExperimentsQuotidiennes 67
R is for the Rule-Ruled Room 70
S is for Salvatius’ Ship, Sailing along its own Space-TimeLine 74
T is for the Time-Travelling Twins 78
U is for the Universe, and Einstein’s Attempts toUnderstand it 81
V is for the Vexed Case of the Violinist 84
W is for Wittgenstein’s Beetle 87
X is for Xenophanes and Thinking by Examples 90
Y is for Counterfactuals and a Backwards Approach to
Z is for Zeno and the Mysteries of Infinity 97
Notes for Experimenters
How to Experiment 103
Notes and Cuttings 117
Who’s Who of Experimenting 126
What People are Saying About This
"Martin Cohen's book is a delight to the intellect. His discussion of historically important thought experiments displays considerable erudition, permeated by wit and occasionally farcical invention which embellish the philosophical value of his treatment."
Zenon Stavrinides, University of Bradford
"Cohen's book is packed with wit and scurrilous remarks about mainstream philosophers. His inimitable writing style, which entertains as it instructs, is directed towards making philosophical ideas immediately accessible to the general reader."
George MacDonald Ross, University of Leeds
"One of the fun things about philosophy is that you can sit back in your armchair, set up a laboratory in your own head and calmly observe the results of mixing x with y. This is the grand tradition of the "thought experiment", to which Cohen provides a zippy alphabetical guide. Cohen's explanations of the problems are lucid, and he defends the tradition against killjoys who argue that thought experiments cannot ever give reliable conclusions. At its best the thought experiment can be a highly compressed, conceptually fruitful marriage of science and literature."
Steven Poole on Wittgenstein's Beetle
Saturday November 20, 2004
"The value of this little book is that it collects a wide range of thought experiments and presents them in an accessible way. It is a good place to start, and it will be especially useful for those who teach courses on the topic and want to introduce it to a new generation of students."
James Robert Brown, University of Toronto
Times Literary Supplement