Half-full or half-empty?

An optimist will tell you the glass is half-full; the pessimist, half-empty; and the engineer will tell you the glass is twice the size it needs to be. – Anonymous

The half-full, half-empty type of recurring arguments are counter-productive but too often occuring, even in science. Maybe like the quote above, it is simply a question of considering things differently. Interestingly as scientists we are suppose to be really good at this…