the.com/progression
Forward motion, sequenced — proof that you're not where you started, mathematically or otherwise.
means A series of steps, stages, or numbers advancing in an orderly, related sequence toward something more developed.
from From Latin progressio, 'a going forward,' built from pro- (forward) and gradi (to step) — literally stepping ahead.
Math senseSequences with fixed rules: arithmetic, geometric, harmonic.
Music senseChords moving in order, the engine of songs.
Not progressProgression sequences; progress judges whether it improved.
Disease useDoctors borrow it for worsening conditions, grimly.