My Faults My Own

…beleaguered by the same

negation and despair,

show an affirming flame.

IN WHICH Ross Rheingans-Yoo, a sometimes-poet and erstwhile student of Computer Science and Math, oc­cas­ion­al­ly writes on things of int­erest.

Reading Feed (last update: October 15)

A collection of things that I was happy I read. Views expressed by linked authors are chosen because I think they're interesting, not because I think they're correct, unless indicated otherwise.


Blog: Marginal Revolution | Is the World Bank lending too much to China? — "As I understand it, the World Bank makes money on these loans and there is a cross-subsidy of other Bank activities, most of all aid. A World Bank that stopped such loans would be poorer and less skilled, and over time could devolve into one of the poorer, less effective poverty-fighting parts of the United Nations, without much of a political power base at that."


Blog: Marginal Revolution | Blade Runner 2049 (some Straussian spoilers) — "It hardly makes any concessions to the Hollywood vices of this millennium and indeed much of the Tysons Corner


A Meditation on π

note: This is not a volley in the \(\pi-\tau\) debate, of which Vi Hart is undisputed monarch -- and right, as well -- as far as I'm concerned.


A few number-theoretic \(\pi\) facts:

  • \(\pi\) is provably transcendental, thus also irrational.
  • \(\pi\) is suspected, but not known, to be normal, a generalization of transcendence.
  • \(\pi\), provably, has Liouville-Roth constant (or irrationality coefficient) no greater than \(7.6063\), and is suspected to have constant no greater than \(2.5\). (As a consequence of its irrationality, its L-R constant is \(\geq2\).)

Note, though, that each of these things is also true of literally 100% of numbers. And before you scoff at my use of the figurative 'literally', no no -- measure-theoretically, the non-(normal, transcendental, irrational, irrationality-coefficient-less-than-8) numbers make up exactly, mathematically 0% of the number line.

For the record: irrational algebraics like \(\sqrt2\) are also nonterminating and nonrepeating, and it's

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