Theories are stories. They are attempts to explain observations–to go beyond what is known. Whenever anyone goes beyond what is known, they are in a land of fantasy. Divine revelation is different from this. God has reveals that He created the Heavens, Earth, seas, and everything in them is six days ending with the creation of Adam from the dust on day six. He also reveals that there were about 6,000 years between Adam and today. Nothing that God reveals through His Creation (scientific observation) conflicts with that. God speaks through His Creation confirming what He is saying through Scripture. Going beyond what God is saying and going into fantasy land is sin. If anyone adds to God’s Words, whether it’s what He’s saying through Creation or the Bible, God will show that person to be a liar.