Self-hosted, super simple photo stream.

Fear of Macros, by Greg Hendershott. #racket

  John Cale, Fragments of a Rainy Season.

xkcd 936, with Python implementation (by Tim Bradshaw).

Through 20 years of effort, we’ve successfully trained everyone to use passwords that are hard for humans to remember, but easy for computers to guess.

I have two high-quality CL implementations on my machine and one Scheme-derived system, also of very high quality, which created this blog: I have long ago stopped counting the number of good-quality free implementations. (…) Performance is a solved problem: yes, highly-optimised code is, perhaps, slower than optimised C or Fortran but since almost all performance problems are design problems no-one older than about 19 cares any more. (…) The library problem has been solved by Quicklisp and a large number of good-quality standard libraries. I am still using code I wrote over twenty-five years ago with essentially no modification: meanwhile the Python code I wrote ten years ago is long rendered obsolete by gratuitous changes in the language (the Perl code I wrote at the same time is doing fine, however). — Rumours of my death

The heart and soul of mathematics consists of the fact that the “same” objects can be presented to us in different ways. — Equality Is Hard

Never heard of the U combinator, which “allows you to define recursive functions and I think it is simpler to understand than the Y combinator.” #racket

Fast float parsing in practice.

L1 Penalty in Cox Regression. #python

  Jack DeJohnette Ravi Coltrane & Matt Garrison, In Movement.