All minibrots are actually surrounded by a history of the zoom. From about the 1/2 way point of the video you actually see a replay of the entire 1st half but with 2-way symmetry, but using 1/2 the space. This is followed by a replay at 4-way symmetry using 1/4 of the space. Near the mini-brot the symmetry gets so high, and the spacing so dense that it looks like circles. Eventually this process collapses towards infinite symmetry, and a minibrot is found.
Das habe ich von dem Creator dieses Mandelbrot-Zooms gelernt.