Thank you rhinofeet for making this gif:
Stashed in: Economics!, gifs, High Quality gifs, @firstround, Ballet, Black Swans!
Source is 4:03 through 4:06 in First Round's 2014 Holiday parody video:
I wonder if the Black Swan is a reference to the Taleb book?
I stashed more of their holiday parody videos here:
The car century was a mistake. It’s time to move on.
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Top 10 Cutest Animal Images on PandaWhale
Jay Jamison on Interest-Based Social Networks in 2013