Found While Looking for Something Else

The "How-to-Geek" folks came up with this one.   No citation, other than the main page, as it only appears in their newsletter and in today's front page of their website.

Link rot, finding that a URL leads nowhere, is frustrating enough when you’re casually browsing, but it’s proving to be a serious problem in legal affairs. A Harvard study found that approximately 50 percent of the URLs cited in U.S. Supreme Court cases are already invalid.

In the unlikely event you're reading this on 20 OCT 2019 you'll find the quote on their front page.  By tomorrow . . . probably not.  Another broken link.  And this isn't even a supreme court case.