  Betelgeuse is one of the most magnificent stars in the sky, and one of the
nearest red supergiants. Astronomers gathered in Paris in the Autumn of 2012 to
decide what we know about its structure, behaviour, and past and future
evolution, and how to place this in the general context of the class of red
supergiants. Here I reflect on the discussions and propose a synthesis of the
presented evidence. I believe that, in those four days, we have achieved to
solve a few riddles.
