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Welcome to my blog, which was once a mailing list of the same name and is still generated by mail. Please reply via the "comment" links.

Always interested in offers/projects/new ideas. Eclectic experience in fields like: numerical computing; Python web; Java enterprise; functional languages; GPGPU; SQL databases; etc. Based in Santiago, Chile; telecommute worldwide. CV; email.

Personal Projects

Lepl parser for Python.

Colorless Green.

Photography around Santiago.

SVG experiment.

Professional Portfolio

Calibration of seismometers.

Data access via web services.

Cache rewrite.

Extending OpenSSH.

Last 100 entries

Data Mining Books; SimpleDateFormat should be synchronized; British Words; Chinese Govt Intercepts External Web To DDOS github; Numbering Permutations; Teenage Engineering - Low Price Synths; GCHQ Can Do Whatever It Wants; Dublinesque; A Cryptographic SAT Solver; Security Challenges; Word Lists for Crosswords; 3D Printing and Speaker Design; Searchable Snowden Archive; XCode Backdoored; Derived Apps Have Malware (CIA); Rowhammer - Hacking Software Via Hardware (DRAM) Bugs; Immutable SQL Database (Kinda); Tor GPS Tracker; That PyCon Dongle Mess...; ASCII Fluid Dynamics; Brandalism; Table of Shifter, Cassette and Derailleur Compatability; Lenovo Demonstrates How Bad HTTPS Is; Telegraph Owned by HSBC; Smaptop - Sunrise (Music); Equation Group (NSA); UK Torture in NI; And - A Natural Extension To Regexps; This Is The Future Of Religion; The Shazam (Music Matching) Algorithm; Tributes To Lesbian Community From AIDS Survivors; Nice Rust Summary; List of Good Fiction Books; Constructing JSON From Postgres (Part 2); Constructing JSON From Postgres (Part 1); Postgres in Docker; Why Poor Places Are More Diverse; Smart Writing on Graceland; Satire in France; Free Speech in France; MTB Cornering - Where Should We Point Our Thrusters?; Secure Secure Shell; Java Generics over Primitives; 2014 (Charlie Brooker); How I am 7; Neural Nets Applied to Go; Programming, Business, Social Contracts; Distributed Systems for Fun and Profit; XML and Scheme; Internet Radio Stations (Curated List); Solid Data About Placebos; Half of Americans Think Climate Change Is a Sign of the Apocalypse; Saturday Surf Sessions With Juvenile Delinquents; Ssh, tty, stdout and stderr; Feathers falling in a vacuum; Santiago 30m Bike Route; Mapa de Ciclovias en Santiago; How Unreliable is UDP?; SE Santiago 20m Bike Route; Cameron's Rap; Configuring libxml with Eclipse; Reducing Combinatorial Complexity With Occam - AI; Sentidos Comunes (Chilean Online Magazine); Hilary Mantel: The Assassination of Margaret Thatcher - August 6th 1983; NSA Interceptng Gmail During Delivery; General IIR Filters; What's happening with Scala?; Interesting (But Largely Illegible) Typeface; Retiring Essentialism; Poorest in UK, Poorest in N Europe; I Want To Be A Redneck!; Reverse Racism; The Lost Art Of Nomography; IBM Data Center (Photo); Interesting Account Of Gamma Hack; The Most Interesting Audiophile In The World; How did the first world war actually end?; Ky - Restaurant Santiago; The Black Dork Lives!; The UN Requires Unaninmous Decisions; LPIR - Steganography in Practice; How I Am 6; Clear Explanation of Verizon / Level 3 / Netflix; Teenage Girls; Formalising NSA Attacks; Switching Brakes (Tektro Hydraulic); Naim NAP 100 (Power Amp); AKG 550 First Impressions; Facebook manipulates emotions (no really); Map Reduce "No Longer Used" At Google; Removing RAID metadata; New Bike (Good Bike Shop, Santiago Chile); Removing APE Tags in Linux; Compiling Python 3.0 With GCC 4.8; Maven is Amazing; Generating Docs from a GitHub Wiki; Modular Shelves; Bash Best Practices; Good Emergency Gasfiter (Santiago, Chile); Readings in Recent Architecture; Roger Casement; Integrated Information Theory (Or Not)

© 2006-2013 Andrew Cooke (site) / post authors (content).

On-Demand CDs

From: "andrew cooke" <andrew@...>

Date: Thu, 4 Jan 2007 12:03:44 -0300 (CLST)

On Tuesday evening we went out for Sushi (at "Too Much" in Providencia -
it was OK, I think Pauli was more impressed with it than me, and she's the
Sushi person) and the following came up in conversation:

Why don't music shops (places that sell CDs) burn them on demand?  I've
read recently that books may soon be printed on demand - it seems that CDs
should be an easier problem.  The printing is smaller volume (although
perhaps higher quality) and burning a CD should be pretty easy.

Looking at my files, a flac track is about 30MB.  So an album is about
300MB.  A 1TB disk (not expensive these days) could hold 3000 CDs and
cover art.  That's about the number of CDs in a small-ish shop, by my
reckoning (I estimated 2500 CDs in my local store).

Disk, printer and burner can't run to more than $10,000 which is probably
about the price of the stock.  So we seem to be at about break-even point.

I assume the big record companies would ship out hard drives already
loaded with music, and perhaps HD-DVDs or Blue Rays or whatever with
updates each month.

Moving past the break-even stage, imaging what will happen - the variety
of Amazon on the street corner!  I wonder how Amazon feels about this?  I
wonder who is doing this already?

Andrew

Typing Mistakes

From: "andrew cooke" <andrew@...>

Date: Thu, 4 Jan 2007 12:09:42 -0300 (CLST)

Given the nature of this site (uploaded emails), it's hard to edit posts
once they are published.  So I often wince to see my typing mistakes.

It's interesting to see the kinds of mistakes that are made.  One command
kind is letter transposition.  This seems to be a timing error (I type
quite quickly, but was never taught, so it's a bit hit and miss). "Teh" is
the big example here.

Another example is typing the wrong word.  Either because it is spelt
similar to another, or sounds similar.  I seem to do both.  My guess is
that this is a breakdown in the communication between higher level
(semantics-aware) and lower level (syntax only) parts of the brain.

Of course, some of the latter class may also be real mistakes.

Andrew

ITb Disk

From: "andrew cooke" <andrew@...>

Date: Fri, 5 Jan 2007 09:30:30 -0300 (CLST)

Hitachi have just announced a 1Tb disk -
http://www.reghardware.co.uk/2007/01/05/hitachi_unveils_first_1tb_hdd/

(shipping Q2)

Andrew

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