An excellent recent episode of the BBC Radio 4 math/current affairs show "More or Less" dramatized "The Parable of the Ox," a short article by John Kay originally published in the Financial Times (paywalled, alas, or I'd link to itavailable from Kay's site). Fans of James Surowiecki's Wisdom of the Crowds will know the first part of this story -- wherein the average of several guesses about the weight of an ox was more accurate than the guesses of any of the experts in the crowd. What this podcast and the article adds is a coda about how the use of "guesses" (or stock trades) as a way of weighing the ox quickly departed from guesses about the weight of the ox (or the value of a firm) and turned into guesses about other peoples' guesses about other peoples' guesses -- a financialized system that soon has no connection to the real economy or the real ox. And it ends, predictably enough, when the ox dies.
Philips has acquired Luciom, a French startup that makes Li-Fi products, which allow for very fast network connections over short distances by flickering an LED at speeds that are too fast to register on the human eye, and which can ever work in the dark by operating at low dimness settings the human eye perceives […]
Many insurers offer breaks to people who wear activity trackers that gather data on them; as Cathy “Mathbabe” O’Neil points out, the allegedly “anonymized’ data-collection is trivial to re-identify (so this data might be used against you), and, more broadly, the real business model for this data isn’t improving your health outcomes — it’s dividing […]
As the US government ramps up its insistence that visitors (and US citizens) unlock their devices and provide their social media accounts, the solution have run the gamut from extreme technological caution, abandoning mobile devices while traveling, or asking the government to rethink its policy. But Maciej Cegłowski has another solution: a “travel mode” for […]
DJI is the world’s leading designer and producer of easy-to-fly drones and aerial photography systems. If you’re a drone enthusiast, you want a DJI. If you know absolutely nothing about drones and think they’re weird, if you win a DJI you’re going to become a drone enthusiast.Enter this giveaway (for free, yes) and you’ll get a […]
Although there will never be a consensus about the best way to make coffee, any coffee connoisseur will agree that controlling the grind of your beans and balancing water temperature are the keys to a tasty cup. Since your plastic coffee pot doesn’t really allow for that kind of customization, going back to the French […]
Not all hackers are malicious information thieves—white-hat ethical hackers work with technology companies to ensure the security of their computer systems and user data. With all of today’s high-profile data breaches, ethical hackers are in considerable demand. To learn these critical skills and break into the high-paying cyber security field, try taking the courses in this […]