Ranking is a farce. Apparent performance is actually attributable mostly to the system that the individual works in, not to the individual himself. — Statistical process control after W. Edwards Deming

TIL: A collection of concise write-ups on small things.

909 TILs and counting…

Here it is.
(ground beef, eggplant, peppers, tomatoes, moussaka style)

Why do we need Flask, Celery, and Redis?.

The book Programming Algorithms (A comprehensive guide to writing efficient programs with examples in Lisp) is now completed, and it is available (eventually for free) on Leanpub. #lisp

Given that many of Common Lisp’s defining features and advantages are also available in other languages, who would choose Lisp over any of the more mainstream options? Someone who needs to write code that is portable across operating systems and competing implementations in a high-level, compiled language that generates standalone executable binaries with execution speed comparable to C. — Pragmatic reasons for choosing Common Lisp

Web development starter pack. #lisp

Motzkin paths and source code silhouettes. See also Motzkin numbers on the main blog.

A List of Ways to Confirm the Earth is Round.

People who have never really lived in a world without mobile phones […] might think that daily life at that time was unnecessarily complicated and ‘harder’. Organising meetings, finding people, finding places around you, having to use paper maps instead of having a portable device with GPS functionalities built in, not being able to look things up in Google or Wikipedia at any time. The truth is, people knew how to organise themselves with the tools they had available. Daily life had a completely different pace and style, built around the tools available at that time. It really isn’t a matter of ‘worse’ or ‘better’ — life was just different. — How I’d live this quarantine if it was 1990