Notes from the underground
Updated 7 November 2025
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A collection of philosopher biographies.
87. Nature From Within: Gustav Theodor Fechner And His Psychophysical Worldview (2004)
by Michael Heidelberger
Reestablishes Fechner’s place in the history and philosophy of science.
www.amazon.com
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Can teleportation be verified empirically?
What’s a logical paradox?
Achilles & the tortoise
The surprise exam
Newcomb’s problem
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Seeing and being
Logic test!
Philosophers say the strangest things
Favourite puzzles
Books on consciousness
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