Goodhart's Law is one of those neat formulations that codifies something I've been trying to put my finger on for years: "once a social or economic indicator or other surrogate measure is made a target for the purpose of conducting social or economic policy, then it will lose the information content that would qualify it to play such a role."
That is, once you start measuring GDP as a way of gauging social welfare, people will start to figure out ways to make GDP go up without improving social welfare (say, by swapping dirty financial derivatives). Once Google starts measuring inbound links as a way of evaluating the importance of web-pages, people will figure out how to increase the inbound links to unimportant pages (splogging, blogspam). And once you measure fat or calorie content as a proxy for the healthfulness of food, manufacturers will figure out how to decrease fat and calories without making the food more healthful (reducing fat by adding sugar, reducing calories by adding poisonous artificial sweeteners).
The law was first stated in a 1975 paper by Goodhart and gained popularity in the context of the attempt by the United Kingdom government of Margaret Thatcher to conduct monetary policy on the basis of targets for broad and narrow money, but the idea is considerably older. It is implicit in the economic idea of rational expectations. While it originated in the context of market responses the Law has profound implications for the selection of high-level targets in organisations.
Following up on our earlier story about Roku re-platforming Alex Jones and Infowars, it looks like Roku got so much criticism from users, they’ve reversed course and will remove the Infowars app.
Professionalization isn't perfect: historically, professional societies "were structured around hierarchies of gender and race and laypeople were expected to obey expert judgment without even asking questions."
(Neither Boing Boing nor I have received any compensation for this post: Libro.fm asked me to post this and I did so because I want to see them succeed -Cory) Libro.fm (previously) is an independent audiobook store that sells all the same audiobooks you can get on other platforms like Audible, Google Play, Apple, Downpour, […]
It’s a rude awakening for that rookie vacationer abroad when they try to plug in their gear for the night. Veteran jet-setters know that outlet shapes can vary wildly from country to country, which necessitates that most boring must-have for any world-traveler: A sackful of clunky power adapters. Awkward problem, elegant solution: The Twist Plus […]
Looking for a career in music behind the boards, either as a music producer or DJ? It’s a good bet that you’re going to be working with Ableton Live. Each new iteration of this powerful workstation gives the user more tools to create, and it’s just as well suited for the task of meticulous track […]
The graveyard of failed startups is littered with concepts that just got lost in translation. At its core, that’s what great front-end design is about: Making an app or website usable, translating its best ideas smoothly to the user. It’s a skill so broad there might be no one book or course that covers it […]