Here is the quote I referred to above.
KELLER: The more you have of something, the less you like it. So we want to give you just enough that when you've had that last bite, you go, god, I wish I had a little more. And then you say, no, you can't have anymore.
KELLER: And then we bring out the next dish because at that moment when you've had that last bite and you say you want a little more, that's the moment when it's been a perfect experience for that food. And the next dish comes out and we hope to achieve the same thing, so by the time you've gone through this 10, 11, 12 or 13 courses, of course your appetite has been satisfied.