This cute animation reminded me of this paper of Kenyon and Wilson on the combinatorics of electrical circuits: http://www.ams.org/journals/tran/2011-363-03/S0002-9947-2010-04964-5/home.html … In their terms, this graph is an example of a "grove" on a ~20x20 square grid with ~80 red+blue "nodes". 1/3https://twitter.com/jagarikin/status/1130995437891047426 …
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Ooh, more cool things to learn!
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