Es que era largo de explicar cabrones.
Para empezar, esa gráfica habla del generador de mapas, decir que por que tu construyas algo alto va a tener nieve es inventartelo por la cara.
Por otro lado, para pasar de un mapa sin nieve a otro con nieve se han de cargar nuevos bloques y eso se relaciona con estas delcaraciones de notch.
Notch has commented on Seasons before and explained that they're difficult to do. From Minecast Episode #5 (Jul 21, 2010):
Seasons: "The seasons don't really work too well with the infinite map thing, because if you leave an area when it's summer then you come back when its winter, it's going to be like, lots of exposed grass and such. So I'll have to go through the entire level, or chunk, and bring it up to date with the snowing and such, which will make it even slower when you're going back and forth. But I might have seasons where it snows more during some time of the year, but doesn't actually get cold or warm, so the snow melts, stuff like that. But I will have areas where there's snow just at the tops of mountains and areas where it's just totally solid frozen oceans and such." (27:13)[/i]