Now what? There’s so much more to be said about last night and the 21 years that came before it. And surely, so much more will be said. But we gather here to discuss today’s game and to focus on what’s next. As of this writing, FanGraphs gives the Mariners a 4.1% chance of winning the World Series. To get there, they’ll have to advance through the gauntlet of the postseason bracket, and the best way to do that is to win and try to get home field advantage in the first round. It’s a tall order and requires making…