  Those that do not sow care little about such mundane things as equinoxes or
planting seasons, or even crop rotation for that matter. Wherever and whenever
the reavers reave, the mood is always foul and the nights are never warm or
pleasant. For the rest of the good folks of Westeros, however, a decent grasp
of the long-term weather forecast is a necessity. Many a maester have tried to
play the Game of Weather Patterns and foretell when to plant those last turnip
seeds, hoping for a few more years of balmy respite. Tried and failed. For
other than the somewhat vague (if not outright meaningless) omens of "Winter is
Coming", their meteorological efforts have been worse than useless. To right
that appalling wrong, here we attempt to explain the apparently erratic
seasonal changes in the world of G.R.R.M. A natural explanation for such
phenomena is the unique behavior of a circumbinary planet. Thus, by speculating
that the planet under scrutiny is orbiting a pair of stars, we utilize the
power of numerical three-body dynamics to predict that, unfortunately, it is
not possible to predict either the length, or the severity of any coming
winter. We conclude that, alas, the Maesters were right -- one can only throw
their hands in the air in frustration and, defeated by non-analytic solutions,
mumble "Coming winter? May be long and nasty (~850 days, T<268K) or may be
short and sweet (~600 days, T~273K). Who knows..."
