Isn't our brain made of chemicals of all kinds, and how we 'feel' is based on many chemical interactions, and so the "a reasonable way to feel given what you've been through", is the brains natural 'reasonable way to feel' as a reaction given some environment it is in.
So this is just measuring that reaction.
Maybe think of it more as analyzing why things are, and not as fixing an error. Like science does. Measure it.
The brain is complicated, that doesn't mean we can't measure it and try and understand it. Right now people are just 'It's impossible, it must be a soul, or something mystical' how else could it be the way it is?
I haven't argued that at all and I'm not saying we can't measure it and understand it. I'm saying reducing it to "just chemicals" is missing the forest for the trees and goes against understanding it better. Might as well reduce it to just atoms, or just protons/electrons, or just quarks... Do you see what I mean? Why are chemicals where you draw the line?
Guess I was just off-hand thinking that 'chemicals' was 'reasonable' cutoff point from going too small, but small enough. It was off the cuff scaling, I have no real evidence where we would stop on the sliding scale from larger emergent properties.
People that go smaller, to quarks, and throw in Quantum Mechanics are usually not super serious. It gets woo-woo.