Too Complex To Exist? [1] Paul Kedrosky has been pondering complex social systems and why they sometimes fail. Apparently it has something to do with "normalization of deviance," "tight coupling" [2] and "slack." [3]
posted by kliuless on Jun 24, 2009 - 7 comments

Picture a three-guy trading floor. They would call a carrier,... [and] manually move trunks in and out of route by issuing SQL commands against the Veraz's Oracle database.... Let me write that out for you: One ass-hat residential customer with a 20yo telephone with four extra buttons did thirty million dollars in damages in less than one night. Anyways, that's how the company went bankrupt... and about 6000 or so people ... all got laid off.
posted by orthogonality on Feb 9, 2009 - 97 comments

"The avionics system in the F-22 Raptor, the current U.S. Air Force frontline jet fighter, consists of about 1.7 million lines of software code. The F-35 Joint Strike Fighter...about 5.7 million lines of code...Boeing’s new 787 Dreamliner...about 6.5 million lines of software code. These are impressive amounts of software, yet if you bought a premium-class automobile recently, it probably contains close to 100 million lines of software code."
posted by mr_crash_davis mark II: Jazz Odyssey on Feb 4, 2009 - 64 comments

While it's been noted Obama is the first presidential candidate to run political ads in video games and one of his transition team leaders plays World of Warcraft, there's no real evidence as yet that the coming administration encompasses the gaming experience and mindset. Since future ones undoubtedly will, as video and computer games go mainstream, it's worthwhile to ponder what things would be like if gamers ran the world. (via) [more inside]
posted by Doktor Zed on Dec 8, 2008 - 52 comments

Why systems fail - Review of the book: Systemantics; how systems work... and especially how they fail by John Gall. New York, Pocket Books, 1978. {via} [more inside]
posted by kliuless on Nov 16, 2008 - 21 comments

Plunging into the shadows: "In thinly traded, lightly regulated and untransparent markets, the bold can make an awful lot of money—and they can lose it on an even more extravagant scale... In today's caffeine-fuelled dealing rooms, a barely regulated private-equity group could very well borrow money from syndicates of private lenders, including hedge funds, to spend on taking public companies private. At each stage, risks can be converted into securities, sliced up, repackaged, sold on and sliced up again. The endless opportunities to write contracts on underlying debt instruments explains why the outstanding value of credit-derivatives contracts has rocketed to $26 trillion—$9 trillion more than six months ago, and seven times as much as in 2003."
posted by kliuless on Sep 24, 2006 - 27 comments

The Logic of Diversity "A new book, The Wisdom of Crowds [..:] by The New Yorker columnist James Surowiecki, has recently popularized the idea that groups can, in some ways, be smarter than their members, which is superficially similar to Page's results. While Surowiecki gives many examples of what one might call collective cognition, where groups out-perform isolated individuals, he really has only one explanation for this phenomenon, based on one of his examples: jelly beans [...] averaging together many independent, unbiased guesses gives a result that is probably closer to the truth than any one guess. While true — it's the central limit theorem of statistics — it's far from being the only way in which diversity can be beneficial in problem solving." (Three-Toed Sloth)
posted by kliuless on Jun 20, 2005 - 6 comments

Exploring Emergence. [Java]
posted by Gyan on Aug 30, 2004 - 8 comments

Dancing with Systems: What to do when systems resist change. Is an excerpt from the late Systems Theorist and Enviromentalist Donella Meadow's unfinished last book. There is beautiful information here. If you are confused and wondering about some of the ideas that has infused the world-wide peace, enviromental, social justice and anti-globalization movements (That is of course Globalization as defined by the Washington Consensus policies) you would be very hard pressed to find a better place to start. Here are points in the essay. Listen to the wisdom of the system. Expose your mental models to the open air. Stay humble. Stay a learner. Honor and protect information. Locate responsibility in the system. Make feedback policies for feedback systems. Pay attention to what is important, not just what is quantifiable. Go for the good of the whole. Expand time horizons. Expand thought horizons. Expand the boundary of caring. Celebrate complexity. Hold fast to the goal of goodness.
posted by thedailygrowl on Jan 18, 2003 - 9 comments

Do you have problems finding the cheapest flight? Well so do computers.
Carl de Marcken, the man who created the engine behind Orbitz and other travel search engines posits that finding the cheapest fare from one point to another is a NP-Hard problem. Even if you fix the specific route between destinations there can be as many as 10³⁶ combinations.
posted by patrickje on Dec 9, 2002 - 18 comments