From her "Frequently Imagined Questions:
What’s an UberNerd?Calculated Risk's announcement is at http://calculatedrisk.blogspot.com/2008/11/sad-news-tanta-passes-away.html.
For those of you new to what passes for insider humor around this blog, an “UberNerd” is someone who is compelled to understand how things work in grim detail, even if the things in question are tedious in the extreme, like mortgage insurance policies. Not everyone who visits the blog is an UberNerd, or aspires to UberNerdity, but on the other hand those who display UberNerditude in the comment threads are treated with a respect bordering on lunacy. That’s just the way we are.
Her New York Times obituary is at http://www.nytimes.com/2008/12/01/business/01tanta.html.
She'll be missed.