Health- when one says that when the population grows, the learning population must increase proportionally, one implies that it’s all in the numbers and percentages, which is honestly more than we mere mortals can say.
After all, we do know, for example, of how Riba”z asked Vespasian to save R Tzaddok, as in the merit of his fasting Yerushalayim had been saved for 40 years. Does that mean that there were no others who had enormous merits (including, unquestionably, Riba”z himself)? Of course not- but even one person’s kochos and efforts can reap enormous dividends.
Also, just OOC, what’s with the random capitalizations in the beginning of words?