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vinceguidry04/03/20253 repliesview on HN

Rationalism, and the people who believe in it and promote it, has the problem that the human mind unavoidably decides to act as the arbiter of what is rational or not. This limits your vision to only that which the mind internally 'agrees with' or not, entrenching hidden biases.

Fundamentally, it's the mind only engaging with the cognitive, and ignoring the limbic. Engaging with the limbic, with the deep, primal parts of the brain, challenges cognitively-held truths and demands you to support these truths from a broader context.

This is why rationalists are more prone to engage with fascist viewpoints, they seek more power for their held beliefs and fascism offers that in spades. You're not thinking about the history of fascist movements and how horrible they all turned out. You're thinking: How can we do it better this time?

Just like in math, the rational is a subset of the real, and you need both the rational and the irrational to make reality. Focusing exclusively on rationality is intentionally blinding yourself to messy reality.


Replies

moolcool04/03/2025

> Just like in math, the rational is a subset of the real

I just want to highlight this, since it's the cleanest way I've seen this expressed. This is a fantastic hackernews comment.

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TeMPOraL04/03/2025

That's an interesting take, but I can't see how you can dismiss rationality/rationalism as insufficient to process reality on the basis of "ignoring the limbic", without dismissing all of science and mathematics in the process.

I do agree there's more to human experience than just the cognitive / "system 2" view, but the important aspect of our cognitive facility - aspects that put humans on top of the global food chain - is that we can model and reason about the "limbic", and even though we can merely approximate it in the cognitive space, we've also learned how to work with approximations and uncertainty.

This is to say, if reason seems to justify viewpoints generally known, viscerally and cognitively, to be abhorrent, it typically means one's reasoning about perfectly spherical cows in a vacuum instead of actual human beings, and fails to include the "deep, primal parts of the brain" in their model. That, fortunately, is a correctable mistake.

Just like in math, if you construct a seemingly solid edifice of theorems and proofs, but forget and subsequently violate a critical assumption, all kind of wild conclusions will come out the other end.

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exoverito04/03/2025

Everyone likes to use fascist to smear their political opponents, yet I'm not seeing a lot of evidence that the "anti-fascists" are any different. They support mass censorship, state propaganda, political violence, forever war, discrimination, debanking, lawfare, lockdowns, and ironically even infringement of bodily autonomy through unconstitutional vaccine mandates.

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