If the brain can’t do anything except make predictions, where making predictions is defined defined to exclude seeking metaphysical truth, then you have nothing to object to, since it would be literally impossible for anyone to do other than as you recommend.
Since people can engage in metaphysical truth seeking, it is either a sub-variety of prediction, or the theory that the brain is nothing but a prediction error minimisation machine is false.
If the brain can’t do anything except make predictions, where making predictions is defined defined to exclude seeking metaphysical truth, then you have nothing to object to, since it would be literally impossible for anyone to do other than as you recommend.
Since people can engage in metaphysical truth seeking, it is either a sub-variety of prediction, or the theory that the brain is nothing but a prediction error minimisation machine is false.
Downvotes for not being Socratic.