Notes from the underground
Updated 29 March 2026
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A collection of philosopher biographies.
89. Henry Sidgwick: Eye of the Universe (2004)
by Bart Schultz
A magisterial overview of this great Victorian sage.
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Can teleportation be verified empirically?
What’s a logical paradox?
Achilles & the tortoise
The surprise exam
Newcomb’s problem
Newcomb’s problem (sassy version)
Seeing and being
Logic test!
Philosophers say the strangest things
Favourite puzzles
Books on consciousness
Philosophy videos
Phinteresting
Philosopher biographies
Philosopher birthdays
Draft
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