Mathematics. Our complicated, seemingly unpredictable universe. This is chaos theory in action. The motion of a "quadruple pendulum" (simulation with no friction). Source 1 (Reddit u/tmanchester): Source 2 (Matlab code):

Well, I have a few questions…

1. Predictable, really. Just like the weather. 2. Are results identical every time it's run? If so, how sensitive to starting position? 3. How long before the face of Jesus appears?

I wonder how including elastic deformation of the rods would change the pendulum’s trajectory? It would be great to see a 1:1 comparison! 😎

This goes to show, however f*up your life is, there is always a perfect path god's creating for you... 👍

Surely if this was truly chaotic, the computer would not be able to predict the next step. (Yes, I know the idea is that for infinitesimal changes to the starting positions the paths would be very different).

If there's no friction how did it have a pivotal point of fall before momentum shifts.

Draw the center of mass I dare you

Would be neat to weight colors by how much time the parent pendulum has been near current position. e.g. root pendulum has darker filled-in areas. When it's in those areas the rest would have heavier weight and vice-versa. When 4th is darkest, that's when system is in resonance

Yo hice una de péndulo doble con FORTRAN