One *million* compound double pendulums. 
https://observablehq.com/@rreusser/compound-double-pendulums …pic.twitter.com/PfT4O2imCL
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You can run it live too! (Though it’s often necessary to fall back to half float precision on a phone gpu so that it’s not as interesting as desktop):https://observablehq.com/@rreusser/compound-double-pendulums …
I’m so impressed that this can run so smoothly.. I definitely need to learn shaders
