If you can do that, you're basically a Wizard with your own Orb. You can use it to try to imagine what might happen in different scenarios, although it wouldn't reliably predict the future unless you knew a lot about what different people would do under special scenarios.
Well, you don't need the ability to read minds to simulate scenarios. Lisp programming is a lot like pondering orbs. All the code is separated into brackets (orbs) that interact with each other to simulate something. SICP is a famous book that teaches you this concept, but Psychology would help too if you do know a lot more than most about the human mind and you wanted "people" to interact in a simulation.