Stare into the white dot, wait 6 seconds, keep staring what happens to the rest of the illusion? Does it start popping out? or what else?
Stare into the white dot, wait somewhere around a minute, look elsewhere in your house/current-position, does your vision (for a couple of seconds) go wavy?
Stare into the white dot, wait 1 second, does it get fast?
I was crying before a minute came so I had to blink.
That usually doesn't happen with me, I can usually stare at something for more than a minute without blinking, I guess the swirl went too fast so my eyes translated it into rapidly flashing lights.
P.s.
Because there's not enough frames per second on youtube, the illusion can not be noticed in screenrecording of the project, which was a negative surprise for me at the time.
I notice (and this also applies to @kinestheticlearning's project below) that while I see browns and yellows, I don't see the blues that are, to me, the most vivid color when I watch an actual disk in the flesh. Wikipedia says that old-fashioned televisions work better than computer monitors, but nothing is as good as watching face-to-(so to speak)-face.
P.S. It seems that once, before they invented color TV (yes, whippersnappers, I remember when color TV was invented), some station broadcast a spinning Benham disk, and people started calling up to say that their TV was broken. Or, I guess, they thought it was a field upgrade, like in a Tesla.