I’m Jordan Ellenberg, author of How Not To Be Wrong and the brand-new Shape: The Hidden Geometry of Information, Biology, Strategy, Democracy, and Everything Else. AMA about geometry, writing about math, teaching, gerrymandering, pandemic modeling...
I’m Jordan Ellenberg, a math professor at the University of Wisconsin-Madison. I study number theory, algebraic geometry and topology, which basically means I study very old questions about numbers using very new methods developed in the last few decades. I’m also a writer. My new book, Shape: The Hidden Geometry of Information, Biology, Strategy, Democracy, and Everything Else, is all about geometry, interpreted very very broadly. It’s not just about triangles! (Though there are some triangles in the book.) We are thinking geometrically every time we talk about where things are and what they look like and how close things are to other things. In the book I write about the end of human dominance in checkers, the geometry of legislative redistricting, social networks and the spread of pandemics, what a neural network is and how modern machine learning works, Abraham Lincoln’s love of Euclid, mathematicians with poetry envy, poets with math envy, the end of human dominance in checkers, the sometimes-stultifying way we teach math in school, the map of all words, why you are your own negative-first cousin, and a whole lot more.
The book has been reviewed in the New York Times https://www.nytimes.com/2021/05/18/books/review-shape-geometry-jordan-ellenberg.html
and excerpts have appeared in the Wall Street Journal https://www.wsj.com/articles/what-honest-abe-learned-from-geometry-11621656062
And I’m on Twitter, talking about geometry and other stuff, at https://twitter.com/JSEllenberg
Proof (see what I did there?): https://i.redd.it/6ulpirabmo271.jpg