The most valuable goods in our world require, risk, or result in the sufferings that we see. For example…
>• …free will in a moral arena
• …best forming our own character
• …God's atonement for people like Paul
• …worldly people turning to seek God
• …love-bonds forged in suffering
• …solidarity with Christ in suffering
• …true evil-conquering stories
• …a knowable unfolding natural order
• …sacrifices for good causes
• …being of use to those in need
• …appreciating heaven (no suffering)
This is relevant because it makes it even more plausible to suppose that greater goods can justify God's permitting some or all of sufferings that we see.
We cannot see how God's permitting suffering on this scale/magnitude etc. would make for a better world This is relevant because if God existed, we would see the reason.
But wait,…
• …we can see that our best goods require/risk/result in suffering.
• …it's possible that God's reasons for permitting evil have “low seeability.”2