Short answer: the Streisand effect is what happens when trying to suppress a piece of information is the thing that makes everybody see it. The lawsuit, the takedown demand, the injunction — each one is news, and the news is a bigger story than the thing being hidden ever was. You don't get to censor quietly. The attempt is the announcement. * The name comes from an actual case, and the numbers are almost too neat. In May 2003, Barbra Streisand sued photographer Kenneth Adelman for $50 million over an aerial photograph of her Malibu clifftop house. The photo wasn't paparazzi work: it was one of more than 12,000 images in the California Coastal Records Project, a public archive documenting coastal erosion along the state's shoreline. Her house happened to be on the coast. * Before the lawsuit, that photograph had been downloaded six times. Two of those were by Streisand's own lawyers. In the month after the suit became public, it was viewed by hundreds of thousands of people. She lost the case, and the judge ordered her to pay Adelman's legal costs — $155,567.04. The term itself was coined in 2005 by Mike Masnick of the tech site Techdirt, and it has since made it into Merriam-Webster and Dictionary.com. Barbra Streisand's most durable contribution to the English language is a word for a mistake she made. * The mechanism is simple once you see it. Obscure information stays obscure because nobody has a reason to look. A legal threat manufactures the reason. It converts a boring fact into a suppressed fact, and "someone rich is trying to stop you reading this" is a far better story than whatever was in the document. It also multiplies the number of people who now have both the information and a motive to spread it — journalists, lawyers, activists, and a very large number of people online who enjoy being told they can't do something. * Britain has produced the two best case studies, because Britain built a legal instrument almost perfectly designed to trigger it: the super-injunction, a court order that bans reporting a story and bans reporting that the ban exists. In 2009 the commodities trader Trafigura, via the law firm Carter-Ruck, obtained one against the Guardian over a leaked report on toxic waste dumping in the Ivory Coast. The paper couldn't name the company or the order. Within days, bloggers and Twitter users had reverse-engineered the whole thing from what the Guardian was legally allowed to say, and "Trafigura" and "Carter-Ruck" were trending. On October 13, 2009, the parties agreed the order could not stop reporting of proceedings in Parliament, after MP Paul Farrelly raised it in a parliamentary question. The secret lasted about a day and a half. * Then came the footballer. In 2011, Ryan Giggs held a super-injunction — known in court as CTB — barring reporting of an alleged affair. His name was posted on Twitter roughly 75,000 times anyway. On May 23, 2011, Liberal Democrat MP John Hemming used parliamentary privilege to name him in the House of Commons, with the observation that imprisoning 75,000 people was not practical. A court order that worked perfectly against every newspaper in Britain and not at all against everyone else is the clearest picture anyone has drawn of what modern censorship is actually up against. * So why does anyone still try? Because it isn't always irrational, and this is the part the meme version gets wrong. Most legal threats against journalists never become famous, and that's exactly the point — they succeed. A letter from an expensive law firm to a small outlet with no legal budget usually ends the story before publication, silently, with no Streisand effect at all, because there's nothing yet for anyone to notice. That's the logic of the SLAPP suit: not to win, but to make covering you expensive enough that nobody bothers. The Streisand effect is what happens when the target is big enough, or the internet is fast enough, to make the attempt visible. When it isn't, the story simply doesn't exist and you never learn what you missed. * Which means the effect is a lousy thing to rely on and a useful thing to read for. A few habits worth having: when a story leads with "lawyers for X demanded this be taken down," ask what the underlying claim actually is — the demand is dramatic, but it isn't evidence either way. When an outlet reports that it can't tell you something, notice who has the power to impose that silence. And when a suppression attempt backfires spectacularly, remember that you're seeing the failures. The successful ones are, by design, invisible. * There's also a cynical version worth naming. Because the effect is now widely understood, "they tried to censor me" has become a marketing position. Claiming suppression is cheap, generates attention, and is hard to disprove. Before you treat outrage over censorship as proof that something true was being hidden, check whether anything was actually suppressed — a court order, a takedown notice, a documented demand — or whether someone simply noticed that persecution sells.