in what way are human brains also not just predictors? our neural pathways are built and reinforced as we have repeated exposure to inputs through any of our senses. our brains are expert pattern-followers, to the point that is happens even when we strongly don't want to (in the case of PTSD, for example, or people who struggle with impulse control and executive functioning).

whats the next sentence i'm going to type? is not just based on the millions of sentences ive typed before and read before? even the premise of me playing devils advocate here, that's a pattern i've learned over my entire life too.

your argument also falls apart a bit when we see emergent behavior, which has definitely happened