Comment by tshaddox

Right, but the implication is that your fate is sealed and that your belief doesn’t reflect reality or isn’t “rational.” I’m assuming the author wouldn’t use the same terminology to describe one’s unwillingness to change their views from something he considers “rational” to something he considers “irrational,” e.g. he probably wouldn’t say “if you believe the Earth is not flat, and you won’t change your beliefs unless presented with compelling evidence and explanations that the Earth is flat, then you are doomed.”