Double thanks! (Always glad to see the German taking "Elizabethan" s-f glyph pair to its ambiguous conclusion.) My very earliest exposure to the Ausdehnungslehr

Double thanks! (Always glad to see the German taking "Elizabethan" s-f glyph pair to its ambiguous conclusion.) My very earliest exposure to the Ausdehnungslehre was in Sternberg+Bamberg. Until coming across Penrose diagrams, this book staved off the disgust I felt for tensor calculus (as used by physicists). http://ndl.ethernet.edu.et/bitstream/123456789/33770/1/108.pdf.pdf http://ndl.ethernet.edu.et/bitstream/123456789/33770/1/108.p... Mainly shocked by the compression of Maxwell's equations to a single line. Otherwise.. that was.. (regrettably cryptic) a reference to the eerily resonant Kolmogorov option, roughly motivated by Hilbert's slogan "truth does not need martyrs". https://scottaaronson.blog/?p=3376 https://scottaaronson.blog/?p=3376 More precisely, I am sympathetic to the idea that the path that Grassmann took to release his discoveries into the world was actually close to the optimal one. Other paths to consider are thus Grothendieck's,Kaczynski's, Galois' (generalizing to purely social bits, even Nash's) Two-sided intellectual exchange with a finished work across spacetime, that's also something.