We will learn, progress in knowledge. When 1 Corinthians 13 says we will know in full, it’s in contrast to seeing through a dark glass. We will know accurately. But we will not be all-knowing. Only God is that, and we will never be God.
Ephesians 2:6-7: ” . . . in order that in the coming ages he might show the incomparable riches of his grace…”
A continual learning more about God, who can never exhausted.
Right now 11% of our brain is used. I know in heaven we’ll have new minds with our new bodies, but consider even what we have now to be amazed at what’s to come.
Theology is the understanding of God and we will be able to understand God in what he reveals to us and throughout his creation. How long will you spend studying a black hole? Why not? Who has placed in us the thirst for knowledge and understanding and beauty? Our Creator. And because he is a Creator he will go right on creating.