-John Sanders, in "Be Wary of Ware: A Reply to Bruce Ware."
This is a really good point, and beautifully illustrates why I don't believe in simple foreknowledge. However, contra Sanders, I believe in meticulous sovereignty, thus God's knowledge of future events includes his exhaustive control of everything that happens.
I would be interested to hear an Arminian response that doesn't appeal to middle knowledge. Any takers?