@spikeyxxx
“The thing is, I think, that those large, repeating numbers are ‘constructed’, while the fractions repeat ‘naturally.’…”
when you say constructed and occur naturally is a large help…
the construct is “man made”?
I follow the basic arc of the modulo part but as you noted I probably do not know enough math to take it in in it’s entirety…
understood about it appears to be magic 😀