Commentary Purg XXVI 93

Since Guido had died ca. 1276, he has made his way from Ostia in very good time indeed, passing through ante-purgatory and the first six terraces in less than a quarter century.  Such speedy passage through purgation is a feature common to all the major figures whom Dante meets on the mountain, one forced on him by his predilection for the recently dead (Statius being the only ancient of note upon the slopes of the mountain allowed a speaking part, while Hugh Capet is the oldest 'modern').  However, we have no idea how long any of the souls whom we see will be at their penance (if Statius is a model, a good long time, since he spent more than 1200 years purging himself [see C.Purg.XXI.22-24]).  We simply have no idea how long Guido must stay in the fire for his lust.  Time is not over for any of these sympathetic figures, and the mysteries of penance and redemption leave such concerns unresolved.  For all we know, Manfred or Belacqua may finish purgation before Guido does.