How Twitter Will Change the Way We Live

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End-User Innovation
The rapid-fire innovation we're seeing around Twitter is not new, of course. Facebook, whose audience is still several times as large as Twitter's, went from being a way to scope out the most attractive college freshmen to the Social Operating System of the Internet, supporting a vast ecosystem of new applications created by major media companies, individual hackers, game creators, political groups and charities. The Apple iPhone's long-term competitive advantage may well prove to be the more than 15,000 new applications that have been developed for the device, expanding its functionality in countless ingenious ways.

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The history of the Web followed a similar pattern. A platform originally designed to help scholars share academic documents, it now lets you watch television shows, play poker with strangers around the world, publish your own newspaper, rediscover your high school girlfriend — and, yes, tell the world what you had for breakfast. Twitter serves as the best poster child for this new model of social creativity in part because these innovations have flowered at such breathtaking speed and in part because the platform is so simple. It's as if Twitter's creators dared us to do something interesting by giving us a platform with such draconian restrictions. And sure enough, we accepted the dare with relish. Just 140 characters? I wonder if I could use that to start a political uprising. (See the 25 best blogs of 2009.)

The speed with which users have extended Twitter's platform points to a larger truth about modern innovation. When we talk about innovation and global competitiveness, we tend to fall back on the easy metric of patents and Ph.D.s. It turns out the U.S. share of both has been in steady decline since peaking in the early '70s. (In 1970, more than 50% of the world's graduate degrees in science and engineering were issued by U.S. universities.) Since the mid-'80s, a long progression of doomsayers have warned that our declining market share in the patents-and-Ph.D.s business augurs dark times for American innovation. The specific threats have changed. It was the Japanese who would destroy us in the '80s; now it's China and India.

But what actually happened to American innovation during that period? We came up with America Online, Netscape, Amazon, Google, Blogger, Wikipedia, Craigslist, TiVo, Netflix, eBay, the iPod and iPhone, Xbox, Facebook and Twitter itself. Sure, we didn't build the Prius or the Wii, but if you measure global innovation in terms of actual lifestyle-changing hit products and not just grad students, the U.S. has been lapping the field for the past 20 years.

How could the forecasts have been so wrong? The answer is that we've been tracking only part of the innovation story. If I go to grad school and invent a better mousetrap, I've created value, which I can protect with a patent and capitalize on by selling my invention to consumers. But if someone else figures out a way to use my mousetrap to replace his much more expensive washing machine, he's created value as well. We tend to put the emphasis on the first kind of value creation because there are a small number of inventors who earn giant paydays from their mousetraps and thus become celebrities. But there are hundreds of millions of consumers and small businesses that find value in these innovations by figuring out new ways to put them to use.

There are several varieties of this kind of innovation, and they go by different technical names. MIT professor Eric von Hippel calls one "end-user innovation," in which consumers actively modify a product to adapt it to their needs. In its short life, Twitter has been a hothouse of end-user innovation: the hashtag; searching; its 11,000 third-party applications; all those creative new uses of Twitter — some of them banal, some of them spam and some of them sublime. Think about the community invention of the @ reply. It took a service that was essentially a series of isolated microbroadcasts, each individual tweet an island, and turned Twitter into a truly conversational medium. All of these adoptions create new kinds of value in the wider economy, and none of them actually originated at Twitter HQ. You don't need patents or Ph.D.s to build on this kind of platform.

This is what I ultimately find most inspiring about the Twitter phenomenon. We are living through the worst economic crisis in generations, with apocalyptic headlines threatening the end of capitalism as we know it, and yet in the middle of this chaos, the engineers at Twitter headquarters are scrambling to keep the servers up, application developers are releasing their latest builds, and ordinary users are figuring out all the ingenious ways to put these tools to use. There's a kind of resilience here that is worth savoring. The weather reports keep announcing that the sky is falling, but here we are — millions of us — sitting around trying to invent new ways to talk to one another.

Johnson is the author of six books, most recently The Invention of Air, and a co-founder of the local-news website outside.in

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