This has always been the biggest problem I've had with Openness. This makes God know less than us. It's absurd on its face and makes me wonder if you believe in God at all. How could He know less than us?
In what way would it make God know less than us?
That's a real question! I'm not trying to play games or make some sort of rhetorical point. I really want to know what about the idea that God doesn't know our future choices has lead you to think that God somehow knows less than we do.
As you say, this is "extreme" Openness, but also as you say, there is "disparity amongst Open Theists", which would lead one to ask, "Well then what is 'canonical' Openness?"
Can you cite even one open theist that believes that God knows (i.e. has infallible foreknowledge of) our future actions?
I know that there are those who make every effort to preserve the doctrine of omniscience by positing that God knows every possible future but that isn't really the same thing as "knowing" the future in the absolute sense of that word.
I mean what are the essentials? Because I don't want to dismiss Openness over "our future choices are not known to Him" if under canonical Openness, God at least knows what we know. That's at least not ridiculous.
Absolutely God knows what we know! Why wouldn't He?
Biblically, God knows everything that He wants to know of that which is knowable. If you or I know it, then it is certainly knowable and unless there is some situation where God has chosen to not know (e.g. He is capable of giving people privacy and isn't required to live inside the head of every pervert on planet Earth) then of course God knows everything we know.
And I rail against "our future choices are not known to Him" because we each know really well what all the people close to us will do, especially contingently, meaning given situation A we know they will do X, given situation B, they will do Y, and given C, Z, and so on.
I know of no Open Theist that believes that God does not have this level of knowledge and much more.
I would point out, however, that this is not "knowledge" in the absolute sense. The fact of the matter is that, regardless of how close you are to a person, you do not know
with certainty what someone with do in a particular situation. You can likely predict their behavior with a high degree of accuracy but prediction is not knowledge, expectation is not certainty, thus your own "especially contingently" caveat.
As for God doing this, this kind of predictive "knowledge" is a major mechanism by which Open Theists believe prophecy works and it is precisely the mechanism by which God hardened Pharaoh's heart. Indeed, open theism teaches that God works with, through, around and in spite of all kinds of people and His understanding of how individuals will behave has everything to do with how He interacts with them.
I just cannot understand why anyone would think that open theism teaches anything contrary to this.
God at least knows that. Seemingly, self-evidently.
I completely agree, as would any open theist that I know anything about.
So when we combine this knowledge with God's knowledge of future situations unconnected with our free will choices, meaning situations that arise independent of human choice, then not only does He know if A then X and if B then Y and if C then Z, but He also knows, for example, that situation B will obtain.
Again, when discussing what some particular person will do, there is no way to have this kind of knowledge (i.e. infallible foreknowledge). The people involved don't even have infallible foreknowledge of their own choices in many, if not most, cases.
Also, there are situations that arise independent of human choice that might well be unknowable. The validity of this point depends on just how God has made the universe which we really do not know with any real certainty, but, if God has in fact made the universe in such a way that certain things are not entirely causally deterministic, as Quantum Mechanics would seem to indicate is the case at microscopic scales, then that leaves open the possibility of events occurring that are genuinely unknowable.
Having said that, there is no need for God to know the motions and interactions of every sub-atomic particle in order to maintain control of His creation because He not only has a full and utterly complete understanding of it's workings but also the power to directly control any aspect of it should the need to do so arise.
So He knows if situation B obtains, we will choose free choice Y. Which is just what we know too, about all those close to us.
Again, no open theist denies this. The main caveat being that this is not knowledge in the sense of infallible certitude, either for God or us.
And He also knows situations B will obtain, which is beyond our knowledge, but is within His knowledge.
God's more complete knowledge, along with His infinite wisdom and power is precisely the mechanism(s) by which open theists believe prophecy works and the means by which God is able to choose His prophets and to defeats His enemies. Once again, however, expectation is not certainty.
So that's more of an argument to support why I find the notion "our future choices are not known to Him" PRIMA FACIE unserious.
I suspect the issue comes down to defining terms because it simply does not follow that "our future choices are not known to Him" means that we somehow know more than God does. That's silly and it is not what ANY open theist believes. None, at least, that I've ever been exposed to.
To be clear, open theism teaches that God knows all knowable things that He desires to know.