This essey is weak, I mean author is comparing apples to oranges. First problem with jellies is Fermi problem, it is approximation. If you have more people givi

This essey is weak, I mean author is comparing apples to oranges. First problem with jellies is Fermi problem, it is approximation. If you have more people giving they answers mean of approximation will be closer to actual value. But second part is about concrete thing it is not estimating or guessing. First part is totally irrelevant. Second part could be used alone. But you just know that you can't please everyone so it is common sense I think. Like going for trip with people who are working in different jobs on different schedules, somebody will have to be left out.