Brian Christian's long Wired feature on A/B testing does a good job of explaining the quiet revolution in product design we've experienced this century, the modes of thought that habitual A/B testing encourages, and the drawbacks to those modes. A lot of the products and services we use today are designed to a turn that makes the previous technologies look like stone axes. That's largely thanks to the ability to run multivariate tests on vast sets of diverse design-choices and quickly converge on optimal solutions that are continuously and automatically refined.
For that same reason, A/B increasingly makes meetings irrelevant. Where editors at a news site, for example, might have sat around a table for 15 minutes trying to decide on the best phrasing for an important headline, they can simply run all the proposed headlines and let the testing decide. Consensus, even democracy, has been replaced by pluralism—resolved by data...
Google insiders, and A/B enthusiasts more generally, have a derisive term to describe a decisionmaking system that fails to put data at its heart: HiPPO—”highest-paid person’s opinion.” As Google analytics expert Avinash Kaushik declares, “Most websites suck because HiPPOs create them...”
One consequence of this data-driven revolution is that the whole attitude toward writing software, or even imagining it, becomes subtly constrained. A number of developers told me that A/B has probably reduced the number of big, dramatic changes to their products. They now think of wholesale revisions as simply too risky—instead, they want to break every idea up into smaller pieces, with each piece tested and then gradually, tentatively phased into the traffic.
The A/B Test: Inside the Technology That’s Changing the Rules of Business
In the age of Internet, discussions about the federal government and its functions are informed by and rely on our unprecedented access to federal documents. Anyone can freely view public records online, such as proposed Congressional legislation and presidential executive orders. Accessing public court documents, however, is a bit trickier. As Katherine Mangu-Ward wrote for the Wall Street Journal in 2011, “no aspect of government remains more locked down than the secretive, hierarchical judicial branch.”
It’s not just that smart cars’ Android apps are sloppily designed and thus horribly insecure; they are also deliberately designed with extremely poor security choices: even if you factory-reset a car after it is sold as used, the original owner can still locate it, honk its horn, and unlock its doors.
Josh Jacobson is a Nintendo cartridge hacker who makes homebrew cartridges for games that were never released for NES/SNES, complete with label art and colored plastic cases that makes them look like they came from an alternate universe where (for example), there was a Nintendo version of Sonic the Hedgehog.
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Python is immensely popular in the data science world for the same reason it is in most other areas of computing—it has highly readable syntax and is suitable for anything from short scripts to massive web services. One of its most exciting, newest applications, however, is in machine learning. You can dive into this booming […]
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