50 double pendulums, whose initial velocities differ only by 1 part in 1000pic.twitter.com/3b75BDkwF1
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Not as satisfying ;-)
but to answer your question newtons equations of motion are invariant under time reversal, so yes it's totally possible
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Sure, but what I'm wondering: say the original sim goes from t=0 to t=10. Then reverse velocities, with the new sim's time going from t'=10 to t'=0. Due to floating point rounding errors, the state at say, t'=5 is going to be very slightly different from the state at t=5...
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that slight difference will be magnified by the chaotic dynamics and the pendulums (maybe) won't come together again at t'=0
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