The Buffalo Theory

From My InBox:

A herd of buffalo can only move as fast as the slowest buffalo. And
when the herd is hunted, it is the lowest and weakest ones at the back
that are killed first. This natural selection is good for the herd as
a whole, because the general speed and health of the whole group keeps
improving by the regular killing of the weakest members.

In much the same way, the human brain can only operate as fast as the
slowest brain cells. Now, as we know, excessive intake of alcohol
kills brain cells. In this way, regular consumption of beer eliminates
the weaker brain cells, making the brain a faster and more efficient
machine. And that, Norm, is why you always feel smarter after a few
beers."

This indeed is the best explanation of why you get smarter after drinking beer.