Why are there 3 distinct bright spots? The old blackhole picture had half bright and half dark, which I believe is a result of the different relative velocities of particles orbiting it, (towards or away from us) So why is there difference? Are there 3 distinct rotating accretion disks?

In https://physics.stackexchange.com/a/326885/56477 Javier said Imagine the universe was the inside of a ball. We're 3D now, so no one is hiding any dimensions. This ball has a border, except it's not really a border. You should think of the whole sphere (the border of the ball) as being just on...