No, you're the one spouting nonsense.
You predict with a very high but NOT 100% amount of confidence that the pitcher will throw. Because, being human, you are not 100% certain, there is always the possibility (tiny but greater than 0%) that the pitcher might drop the ball, die of a heart attack, etc. etc.
You cannot know with 100% absolute certainty that the pitcher will throw.
In any universe where it is possible to know someone MUST do X with 100% absolute certainty, then by definition, there is ZERO possibility that that person will choose to do Y instead.