asaris

That's true, and I admitted as much when I was talking about second-order knowledge. But there's a flaw in your reasoning.

Sure. We don't know what it is that we know. But we know some things, and we know some things about the future. We could be wrong about what it is that we know, but it seems to me to be clear that, among the set of beliefs I have about the future, some of these beliefs are knowledge.

Because the omniscicent being (I'm trying to maintain the fiction we're not talking about God) knows everything there is to know. So she knows that she knows everything there is to know. (Note that, if you really want, this could mean that she also knows that she knows that she knows etc., so her knowledge is actually infinite. But that's just silly.)

You ask what it is that makes our choices meaningful, when it seems like they have to be either determined or random (at least, I think this is what you mean by your opening statement). My position is that what makes our choices reasonable, what makes them 'free', is that we chose them, that we caused ourselves to act in that way.

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"Die Deutschen meinen, daß die Kraft sich in Härte und Grausamkeit offenbaren müsse, sie unterwerfen sich dann gerne und mit Bewunderung:[...]. Daß es Kraft giebt in der Milde und Stille, das glauben sie nicht leicht."

"The Germans believe that power must reveal itself in hardness and cruelty and then submit themselves gladly and with admiration[...]. They do not believe readily that there is power in meekness and calm."

-- Friedrich Nietzsche