In PC's reminiscence, I only make it up to ~1955 (where at least I can identify a capital city and currency) before I also am reduced to knowing little of the c

In PC's reminiscence, I only make it up to ~1955 (where at least I can identify a capital city and currency) before I also am reduced to knowing little of the countries but their names. (am I understanding properly that a Nuclear Operator is one which, despite operating on infinite dimensions, still has a finite trace? Or have I lost the trail, following false spoor?) Lagniappe: https://www.youtube.com/watch?v=1OEron4rXfk https://www.youtube.com/watch?v=1OEron4rXfk EDIT: although I am interested in the idea of Fourier-like analyses for noncommutative semigroups? Also, zeta functions have something of the folding/unfolding origami nature to them, going between bulk and individual data? Can you expand upon PC's commutative triangle by any chance? π_T = φ; π_X (written here algebraically because HN* is a little unsupportive of the geometric.) * like the soldier who supposedly heard "Nōlī turbāre circulōs meōs"?