3 Days in the Desert

The Gemara (Bava Kama 82a) explains that we read the Torah Mondays/Thursdays so we don't go 3 days without water, just as Bnei Yisrael claimed they could not do in the midbar (Shemot 15:22). Perhaps one would question that given the right conditions we know people can indeed go more then 3 days without water. That brings us to the realization that Bnei Yisrael were in the desert when they launched their complaint with the conditions there limiting life without water to 3 days. As that is the basis for establishing Torah readings every 3 days forever, we also must realize that we exist in less then optimal Torah learning conditions.