
Recent Posts
 Senator Sanders’s Proposed Policies and Economic Growth by Christina Romer and David Romer
 An Open Letter from Past CEA Chairs to Senator Sanders and Professor Gerald Friedman
 FOMC: Conspiracists to the left of them, conspiracists to the right
 Pantheism and homotopy theory, Part 2
 Doing my homework: Heidegger, Latour on things
Archives
 March 2016
 February 2016
 January 2016
 October 2015
 September 2015
 August 2015
 July 2015
 June 2015
 May 2015
 March 2015
 February 2015
 November 2013
 September 2013
 July 2013
 June 2013
 April 2013
 March 2013
 January 2013
 November 2012
 October 2012
 July 2012
 June 2012
 May 2012
 April 2012
 March 2012
 February 2012
 January 2012
 December 2011
 November 2011
 October 2011
 September 2011
 August 2011
 July 2011
 June 2011
 May 2011
 April 2011
 March 2011
 February 2011
 January 2011
 December 2010
 November 2010
 October 2010
 September 2010
 August 2010
 July 2010
Categories
Meta
Monthly Archives: March 2011
Hilbert with Ladders, 2004 by Don Relyea (Source: http://www.donrelyea.com)
Noncommutative distances between industries
The distance from your house to the grocery must be the same as the distance back, but 20thcentury mathematicians speculated about circumstances where this might not be the case. Very smallscale physics is noncommutative in some ways and so is … Continue reading
Posted in Uncategorized
Tagged Abelian, asymmetric, asymmetry, business, business school, commutativity, distance, investment banking, marketing, math, mathematics, maths, metric, nonAbelian, noncommutative, noncommutative, PR, quantum field theory, quantum physics, quasimetric, quasimetrics, symmetric, symmetry
Leave a comment
You know what’s surprising? Rotations are linear transformations. I guess lo conocí but no entendí. Like, I could write you the matrix formula for a rotation by θ degrees: But why is that linear? Lines are straight and circles bend. When you rotate something … Continue reading
Posted in Uncategorized
Tagged facts, image, intuition, linear algebra, linear mapping, math, mathematics, maths, matrix, projection, rotation, tensor, unintuitive, why
Leave a comment
Learning by Perfume Genius
Posted in Uncategorized
Leave a comment
The Ascent of Mandarin (via sandy dreams in my backpack, man)
School vouchers’ effect on economic inequality.
http://www.bbc.co.uk/emp/9player.swf?revision=10344_10570 The Taiping “Heavenly Kingdom” historical mèmes: appropriating convenient parts of a foreign, exotic religion for one’s own needs. Buddhism in USA over the last 25 years; Christianity in China 100 years ago. sex is bad smoking, drinking is bad … Continue reading