Meditation is for people who can't do logic.
I said "Except that if the ship's too small for the needs of the design it just looks cramped."
And he said "No, it isn't and doesn't."
He's both saying no to a hypothetical, which makes no sense, and then he's denying that the conclusion follows from the premise, which is insane.
If he's instead simply saying that the ship isn't too small, that was a terrible way to word it, which is odd considering his following post about how many words are necessary to make his point (the answer being: one fewer, apparently). But in addition, he's in no position to make that determination.