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By Root 1837 0

of oxygen; between people and grasshoppers; between Principia Mathematica and Newton’s Principia; between reading Euclid’s proof and tasting chocolate; between reading “accessible” version of proof of Fermat’s Last Theorem and ordering “Indian hot”; between reverberant barking and a chain reaction; between Roger Sperry and Hopalong Cassidy; between Russell and God; between strange loop of “I”-ness and pearl necklace; between this book and a salad; between tired muscles and soft recruits; between top and bottom of Shell sign; between TV screen and leaf pile; between Twinwirld and Twinnwirrld; between will’s constancy and a gyroscope

throwing-away of information

time-lapse photography

Tinkertoys as substrate for thinking

Titanic baby found floating in life raft

titles of sections in Reasons and Persons chapter

toilet paper and pebbles as substrate for thinking

toilets, awareness level of

tomatoes as soulless

Tomonaga, Sin-Itiro

“too marbelous for words”

tornado cell, opposing caged-bird metaphor

tower of increasingly abstract definitions

toy guns, attempted banishment of

traffic jam, global explanation for

trains: identity of; who vs. that

transplanting: a novel to another soil; a soul to another soil

transportability, differential, of layers of a self

triggering of symbols in brain

Treisman, Anne

Trenet, Charles

Trento, Italy

Trojan horse, Gödel’s

true statements: Gödel numbers of; logicians’ favorite examples

trustability of sources of information

Truth and Denotation (Martin)

truth: as inexpressible notion using PM notation; preservation of, via rules of inference; presumed to be equivalent to provability in PM; and unprovability perversely entailing each other

tu (second-person singular pronoun) addressed to married couple

Turing, Alan Mathison

Turing machines

turkey as “which”, not “who”

TV camera: bolted to TV; on long leash; meltdown of; on short leash; universally worn on nose

TV screen as meaningless pixel pattern

“Twe” (first-pairson pronoun in Twinwirld); tweaking of

twildren in Twinwirld

Twinwirld; beings in; plausibility of; souls in; twiddling parameters of

Twinnwirrld

twisty formulas of Principia Mathematica

two bodies but one self

two twos

typeface vs. tale

types, rigid hierarchy of

typographical patterns mirrorable in number patterns

typographical rules of inference; mirrored by computational rules

U

“Über formal unentscheidbare Sätze der Principia Mathematica und verwandter Systeme (I)” (Gödel, 1931)

“umbrella girl” of Morton Salt

umlaut in “Gödel”

Unbridgeable You–Me Chasm

unfathomability of ourselves as good

uninteresting integers

universal beings; thirst for tastes of alien interiorities

universal: machines; music boxes

universality of computers; as missed by early computer engineers

universality of integers; as missed by early computer engineers; as missed by Whitehead and Russell

universality of PM

universality, representational, of humans; empathy as by-product of; threshold for

Universe Q vs. Universe Z

unlimited category system of humans

unpennable lines; pennability of

unprecedented situation as having many precedents

unpredictability: loci of, learning about; in video feedback

unscalability of Himalayan peak KJ

upside-down causality, see downward causality

upside-down perception: of PM strings by Klüdgerot; of world by humans

upside-down reasoning, conclusions drawn from meanings alone

upwards reasoning: in mathematics; in mountaineering

“useful vitality”

use–mention distinction

“W” (second-pairson pronoun in Twinwirld)

V

value of human and animal lives

vanishing point

vegetarianism: in lions, unlikelihood of; of Little Tyke (lion); reflections on

velvet, experience of

verbal behavior: as evidence for consciousness; as insufficient for skeptics

verbal habits, as reinforcing naïve sense of “I”-ness

vibrations vs. pitches

vicarious experiences: hunger for; smooth transition into “real” experiences; thanks to representational universality

victims of macroscopicness

video camera, purchase of

video feedback: as candidate