Rational men and women form beliefs based upon consistent and plausable logic and facts corresponding to evidence and experience.
As opposed to facts which do
not correspond to evidence and experience? Or fictions that do? Whether such things could even exist is likely dependent upon the definition of a fact. I take a fact to be simply
that which is the case, an objective state of extra-mental, or mind-independent, worldly affairs.
(Plus, all men, by nature, are rational, by the way. Man is defined as a rational animal, and thus every individual man is
essentially rational whether or not he can or does act accordingly at any given time. But that’s merely a side note.)
Irrational beliefs are formed out of a deficit in knowledge or explanation, and, with resort to superstition, fable, or, legend to offset the deficit.
Yes, almost all belief-systems, and basically our entire body of natural science, are formed as a response to some perceived deficit in knowledge. Properly speaking, I can only want what I do not have. So the first part of your definition is rather unproblematic. But the second part seems to be misguided. Superstition, fable, and legend may indeed qualify as irrational beliefs, but not all irrational beliefs are one of those three things. However, I somehow suspect you’d use irrationality to describe the distinctive nature of them all, which would of course make your attempted definition quite tautological. I suppose I’ll wait for you to clarify your own terms. You’re mostly trying to tout some variety of
evidentialism, right? (Justification
per Evidentialism:
Person S is justified in believing proposition p at time t if and only if S’s evidence for p at t supports believing p.)
What is curious to me is how human nature so consistently and readily invented gods and ritual across cultures and across the eons of time before approximately 16th century when European science began to provide testable explanations. Before that we were entirely at the mercy of mythology to explain life’s mysteries. Even now, centuries after Francis Bacon, the great minds of the Rennaisance, after Europe crawled out of the dark ages following the collaspe of Roman, what life’s meaning is, and, what is a proper ethos still remain in the grip of rampart superstition or firmly in the grasp of materialistic decadence. The challenge for the 21st century will be developing a rational ethos free of medieval trappings and ambiance and free of the decadent cosumeristic culture in which we find ourselves.
That’s certainly an interesting narrative you’ve relayed to us, but I’m afraid I have yet to see any hard evidence for accepting it as true.