The idea that a baseball team could ever go undefeated for even half a season is ridiculous. No amount of data analysis can make you do that.
That would be like saying that a perfect poker player could win every hand. Even if your opponent was playing with their cards face up, sometimes he is gonna hit his inside straight on the river.
That would be like saying that a perfect poker player could win every hand. Even if your opponent was playing with their cards face up, sometimes he is gonna hit his inside straight on the river.