There was this other formula.

Power = Work / Time.

Knowledge = Power.

Knowledge = Work / Time.

Time = Money.

Knowledge = Work / Money.

Work / Knowledge = Money.

So, the less you know, the more money you make with the same work. The more you know, the more you work to make the same money.

I guess that explains how Grad students and Post-Docs always seem to work and never seem to have any money.