Soothsayers, psychics, fortune-tellers, and crystal ball gazers all try to do what only God can do: accurately predict the future. The Bible is full of trustworthy prophecies that give us a glimpse into the future and help us understand the meaning of approaching history from God's perspective.
Bible prophecy has its skeptics, for sure. Among the doubters are those that disbelieve the supernatural or doubt the existence of God altogether. They are the ones that perform dating gymnastics with the text of Scripture.
We should never doubt the One who calls himself the Alpha and the Omega. He knows perfectly what happens from the beginning of time all the way to the end.