This shape is a fractal made from the Mandelbrot set. I guess the joke is that the more you zoom in the edges the more detail there is, so doing them would be an impossibly infinite task. https://mander.xyz/post/8966692[More info on the Mandelbrot set here.](https://mander.xyz/post/8966692)

From the mandelbrot boundary wiki: "Images of the Mandelbrot set exhibit an infinitely complicated boundary that reveals progressively ever-finer recursive detail at increasing magnifications"

https://en.m.wikipedia.org/wiki/Mandelbrot_set