Funny, your finished doughnut looks like my scott skin sub, an involuting evoluting mag-lev rubber skin w/top theoretical speed of the speed of sound in water. An israeli and I thought of the same form decades ago, but it was far too advanced for people in the marine transport field to understand.
Plus, look at the micro-psi visions of the sub-quark, same form; and it’s composed of 10 “strings”.
Some say that some psychics could tune in to the mental/emotional content registered in the astral regions of that period and see things that actually happened. Things that were similar to what is happening today. I don't understand how they do that, but I guess one could say, what goes around, comes around.