Haven't you ever seen rain?

An aunt mistakenly joined a group of doctors. Someone asked in the group, "If a drop of water falls freely from a very high place, will it kill people?" Doctors in the group have various formulas and statements. At this moment, my aunt said, "Haven't you ever seen rain?" There was silence in the group, and then the aunt was kicked out.

In fact, this joke was originally intended to attack those who didn't pretend to understand (that is, the aunt in the text). Because rain was not in free fall at all, it was not the same thing as the doctors' discussion, so he was kicked.

But now this joke is more used to blame those people whose theory is not connected with practice.