Are you aware of any other demonstrable basis for belief? As a semi-ignorant layman, I suggest the following life cycle for beliefs:
- start with initial state of infant brain (some predispositions, etc)
- sensory input acquired
- internal processing begins - brain processes/synthesizes data based on a simple rule-set contained in its initial wiring, stores data and somewhat reshapes itself; resulting patterns of neuron activity manifest themselves as "beliefs"
- brain continues acquiring input and synthesizing "beliefs" until the body fails to provide sufficient life support; brain ceases to function; "beliefs" terminate
I would also suggest that in this scenario, to address your terms, "inputs" (as I use it) would be a superset of your "experience", and would include the intake of ideas through the ears and eyes, where the brain responds to learned symbols in a conditioned manner. "Human wisdom" would have to be divided into two categories: any wisdom held to be common to all humans - a perfect example being "eternity in the hearts of men" et cetera - would be considered an initial condition of the brain. Learned "wisdom" acquired from others would fall under sensory input (see above) unless a mechanism could be found by which data enters the brain without being sensed by the body.
If I sound biased against the possibility of revelation, it's because hindsight shows me that every perceived semblance thereof was perfectly well explained by the operation of known mechanisms such as and blind guesswork confirmed by conditioning and ingrained doctrine. (oh no, that sounds suspiciously like RM/NS) Ditto for every instance claimed by another, at least those where I possess enough data to make an informed judgment. I stick with Occam and I find him quite trustworthy.