In ten thousand years people will still be complaining about the local weather person (or clone or robot or hologram or whatever). Fortunately for us brain’d creatures, nerve cells are capable of chaotic behavior. Even more symptomatic, as with other chaotic systems, nerve cells demonstrate bifurcation before they become chaotic. It’s hard to directly correlate the chaotic nature of isolated groups of neurons with the ever-changing large-scale behavior of people. Perfect prediction of a person is likely to be impossible, because neurons are capable of truly chaotic behavior.