But take physics, information theory, mathematics, and biology (to start), and throw in quantum mechanics, entropy, randomness, and mutations, I could believe that a psychic could give me useful advice to avert a catastophe....
But I'll never make an appointment with a psychic!
Just like physics, philosophy, quantum mechanics, and potential time travel, with psychics it all comes down to determinism versus free will.
And with psychicks too.