Predestination is true. It's the desire to explain it all in a system that's wrong. We don't know the mind of God to that extent. We only know him through revelation - it's true enough that the idea of predestination is divinely revealed. But understanding how it works is not. Scholastic theologians (which includes Calvin most of all), philosophers, and scientists together are all equally at fault for starting with the premise that the Intellect is some kind of divine tool in and of itself to understand God. It's not. We have no tools but revelation. Once that is settled, everything comes to it's proper place. "Be still, and know that I am God." Also, the "fear of the Lord is the beginning of wisdom".
I see zero fear in the man trying to dissect God, like he's some frog in his middle school science class.