Never been one to let the carrier drop

I’ve been pondering what the difference is between the neural structures that represent data stored in our minds that is changeable and mutable (for example available programming languages, the contextual meanings of words, etc) and data stored in our minds that isn’t easily changable (for example religious beliefs and political ideas).

It seems pretty likely that religious beliefs are stored so immutably that people are unable to let go of them even when they see concrete evidence that they are incorrect, or that they are hurting other people. On the other hand, we have no problem letting go of ideas about, for example, product quality (we routinely adapt which brands we use according to who is currently producing the best products). I am wondering, physically and structurally, what this means about how these bits of data are stored. Since data is stored in our minds via the physical structure of neural interconnections, it’s very interesting that some bits of data tend to be more immutable than other bits.