Stupidity Is Rarely Alone

All truths are connected to other truths, either because they are necessary truths that dictate contingent truths or because they are contingent truths that stand on necessary truths.  There is no such thing as a truth that is wholly disconnected from the core of reality, logical axioms.  Even if someone was to recognize the basic epistemological self-evidence and necessary nature of logical axioms, in believing some other thing through assumptions or inconsistency, he or she might not just believe in the one error.  This is quite uncommon in rationalists.  In fact, it is uncommon to find a fully devoted rationalist who seems to believe in anything because of assumptions, but in a non-rationalist's worldview, one will almost never find just a single contradiction or fallacy.

One error is almost never isolated.  Stupidity is rarely alone, and when irrationality actually is isolated, it is ironically likely that it is a rationalist who has for some reason embraced a very specific error or made an assumption.  Irrationalists are not even trying to avoid errors except perhaps in bursts of incomplete, misguided motivations or in the context of ideas they have only assumed to be true.  If someone is a misogynist, they are almost inevitably a misandrist as well, even if neither they nor others realizes it.  If someone is a relativist, there cannot be just one thing they are wrong about.  If someone is an adherent of scientism, fitheism, anti-realism, or one of many other false philosophies, they have already ignored more than just one truth.

While logic governs truths about everything, truly rational people do not systematically allow sensory experiences, emotional appeal, subjective persuasion, epistemological faith, hearsay (especially of a historical or scientific kind), or cultural norms lure them away from alignment with reason into assumptions or contradictory beliefs.  A perfectly rational person does not allow these things to shape their beliefs at all except when it comes to recognizing perceptions or probabilities secondary to purely logical truths.  Some rationalists might lapse in certain ways or for a time, uncharacteristically lowering their philosophical accuracy, but not only can they catch themselves without the need for someone else to prompt them, but this does not reflect on them as a philosopher in other areas.  Non-rationalists, to the contrary, are defined by their stupidity no matter what they happen to dwell on or acknowledge, for they lack an awareness of or submission to the logical axioms that all things hinge on.

Now, truth is correct and verifiable things are verifiable no matter how many errors someone believes.  It is not that people need to avoid irrationalism because they might otherwise slip into an even greater, more fallacious irrationalism or as if there is some arbitrary number of errors which only then make a person irrationalistic.  There is no justification for believing in anything false or assumed, for to assume even something trivial is to believe without logical proof and to deny or disregard the laws of logic is the ultimate betrayal of reality.  All the same, errors are seldom believed alone, and the more someone believes in irrational metaphysics or epistemology, the more likely they are to be open to even more irrationality, if not to outright diving into more of it.