Vapour Trail Clue To Universal Origins.

A lesser known theory as to the origins of the universe holds that everything came about from the vapour trail of a huge aircraft.
This is known as The Big Boeing Theory.

There are some who will argue against this by questioning how this aircraft could possibly exist before everything else began.
This is just plain silly. After all, the best known of all hypotheses is The Big Bang Theory. (Er - what pre-existing material  is supposed to have exploded BTW?)
Thus, we may rest comfortable in the knowledge that the logic in this view is no less developed than that of  the multi-talented cosmologists.