Let's see how far I can exploit the recommendation algorithm...
Some comments in previous similar videos suggested trying dropping balls on the x^4 function. In contrast to the parabola, x^2, this appears being another chaotic system. 1000 balls, initially mutually spaced apart by approx a millionth of the width of the video, fall under gravity.
Reused music from other videos on this channel, made by @gpcbass. Song is called SEQ2.
Visuals in Python and FFmpeg.