A friend of mine once asked me a question: "If you knew everything, how would you know?" I was speechless. It took my younger brother to answer it so succinctly after I later posed the same question to him. He answered: "If you knew everything, then that would include the knowledge that you knew everything." How simple. Looking back, it's funny. I didn't know. Out of the mouth of babes. But he's a grown man now.
It's called omniscience and only one person I know has it. His name is God. He's numbered the stars (see Psalm 147:4) as well as the hairs on our head (see Matthew 10:30). And the fact that He knows all of this stuff isn't even the most important aspect of who He is. He loves. And He loves you.
Think of the insatiability of your curiosity in whatever endeavor you find that thrills your heart. But heart and brain are two different things. The infinite capacity of our spirit is not meant to be filled with information. Paul spoke of those who are "ever learning, and never able to come to the knowledge of the truth." (2 Timothy 3:7) This is the end of our quest for knowledge: The truth that Jesus loves me. This is what truly fills the void in our heart and renders knowledge superfluous. And Paul says "Whether there be knowledge, it shall vanish away." (1 Corinthians 13:8)
"And King Solomon passed all the kings of the earth in riches and wisdom. And all the kings of the earth sought the presence of Solomon, to hear his wisdom, that God had put in his heart." (2 Chronicles 9:22-23)
Solomon, in his quest for knowledge, wrote that "[God] hath set the world in their heart so that no man can find out the work that God maketh from the beginning to the end" (Ecclesiastes 3:11). The Hebrew word translated "world" (owlam) connotes infinity and eternity. It refers to a distant horizon we're reaching towards but never fully able to grasp, to wrap our minds around. And this is good. God designed it this way. But the vastness of time and space was never meant to draw our attention away from the Creator--of us, and it. He designed that we never be separated from Him as He taught us about the world at large. Think about walking down the sidewalk, holding your parent's hand. They're leading and all you're doing is craning your neck, taking it all in. But life doesn't stay this way for long. Sin happens. And Jesus had to deal with it, which He did, restoring us again to God the Father. And now that we have accepted Jesus and we have a kernel of "the knowledge of the truth", it's important that we learn from Him (see Matthew 11:28-30), and make it our top priority to learn the "knowledge of God" (Colossians 1:10), rather than the "knowledge of good and evil" (Genesis 2:17).
We know what happens then.