  "Winter is coming". As far as meteorological predictions go, the words of
House Stark are both trivial and not very helpful for a scientific analysis to
explain the chaotic sequence of the seasons in the world of "Game of Thrones".
The natives of Westeros have failed to develop a feasible model to understand
and predict the coming and duration of their winters. And although the
scientists of Earth have brought forth many different mechanisms to explain the
seasons, all of them are found wanting (at least by us). Nobody seems to have
discovered the one and only true and working mechanism to explain the coming
and going of winters on Westeros and thus it is up to us to introduce the world
to the might of the often ignored Sitnikov problem. That very special
configuration of two stars and one planet is ideally suited to explain
everything that needs to be explained and uncover the real reason for the
coming of winter.
