Quantum mechanics tells us that things are random. Even if you could chart every particle in the universe, you could not predict everything. Although, you can find likely outcomes.
Haha I was waiting for someone to bring up quantum mechanics. I feel like that's the only legitimate argument you can make against what I said. I don't understand enough about quantum mechanics to really discuss this, but from what I've heard from people who actually study it and know a decent amount about it (nobody knows "a lot" about quantum mechanics) all of the things about randomness are still pretty theoretical or just not well understood.
It's a very interesting subject, but regardless it doesn't conflict with my point that bitcoin prices are NOT random.