I see nothing whatsover wrong with being convinced by my own subjective feelings — Janus
The sense of the sublime, the transcendent, the sacred, feelings of reverence, oceanic oneness, divine beauty and so on are all romantic responses. The sense of the ordinary, the mundane, feelings of indifference or neglect, separation, ugliness are its nihilistic counterparts. — Janus
Again, I’m not saying that there is no biology to our feelings. Without neurobiology, there would be nothing to work with at all.
But neurobiologically, feelings are not basic in a sense that they are more fundamental than cognition or perception. The brain works holistically so an emotional response is an act of orientation, a preparation for action, some suitable form of arousal. The valuing is part of processing whatever is happening in the moment in a whole body and ecologically appropriate way.
So what I stress is your social construction of our emotions as an arbiter of cognition. It is not a completely wrong construction. It does feel like something - an aha! - when we make either a significant match or mismatch in cognition. There is a physiological orientation response that is what it is like to feel with sudden conviction that we have definitely got something right, or equally, that we have definitely just been caught out by something that was a surprise.
Yet still, the Romantic model - where our feelings know better and truer than our cognition - is a social construction. It dates back to at least Plato's charioteer analogy - the Greeks having separated off rationality or logos in the first place. Science would construct its own more convincing and evidence-backed view of what is really going on.
So I am responding to your first comment - "I see nothing whatsover wrong with being convinced by my own subjective feelings."
We know that the brain is pretty reliable when it comes to assessing the threats and opportunities of our environment. Millions of years of evolutionary fine-tuning will do that. But once humans became linguistic and cultural creatures, that biological apparatus got turned towards an assessment of a social world of ideas and attitudes and imaginings. And we know how we can talk ourselves into different view on any issue that will evoke quite opposite evaluations or subjective feelings.
With Trump, you could talk him up as some crazed demon that evokes disgust and aversion and fear. Or you could talk him up as a brave patriot willing to take on the dangerous elite and - just by listening to the way the situation is being socially constructed - start to feel the very opposite as your "trusted, deeply felt, gut reaction".
The same with Duchamp's urinal. Is it the wittiest, cleverest, work of art ever? Or is it a tawdry and mean-spirited joke with zero actual aesthetic merit? You should be able to take either set of words and begin to feel the warm approach or the cold withdrawal that is the dichotomous orientation response which your brain is set up for. It is the cognition that is the basis of the feeling here. The idea that we can bypass the cognition and drill down to discover our true and authentic emotional response to the urinal is a Romantic myth.
So in dealing with the world at an animal level, sure we trust our instinctive feelings. Evolution gives us good reason to take extra fright at anything wriggly and snake-like, or something small, leggy, scampery and spider-like. Just as it gives us good reason to think sugary foods are to be gorged upon anytime we are fortunate enough to encounter them.
But to judge philosophical positions on the basis of "subjective conviction" is obvious bad epistemology. Even if, in the end, feeling something is believable or unbelievable does wind up being a state of neurobiological assessment that includes a state of felt orientation, as that is simply how it works. We need to be left prepared with some clearly dichotomous resolution in terms of our action. We need to make up our minds whether we are approaching or avoiding the idea that is at the current centre of attention.
So I am not denying the reality of subjective emotional assessments. I am saying they are no more fundamentally reliable than the frameworks of cognition which they subserve. It's a package deal. You can feel great conviction - then discover you were completely wrong about the way you were construing the situation.
And then, the idea that subjective conviction is some kind of philosophical bedrock is itself a social construction. It is a way of understanding "feelings" that presumes the human mind can connect with a higher transcendent sphere of meaning. And science finds little evidence in favour of that ontology.
Sure, our neurobiology can be manipulated by mindset to evoke a generalised blissful oceanic feeling flooded with a sense of everything understood or connected with, the self depersonalised and immersed in a reality beyond it. Hell, there are drugs that can do that when you might be feeling shit about life.
But to then claim that evoked mental state is genuine or functional is a social construct. The reality is that we are just playing games with our neurobiological possibilities. And if we truly lose control over such games, that is when you get the messianic personality, the psychotic state, the depersonalised person. We kind of know when the social construction - as happens in an "appropriate way" in a church or art gallery - has become a neurobiological pathology.