Earlier quoted context omitted.
People are not robots, but in terms of reaching agreement between humans, "emotion" is more or less just a difference in priorities, which is one of the ways reasonable people can disagree. If we agree on the facts and we agree on their implications, but we still disagree, it's likely because we weight things differently. Emotions are simply a large component for how we weight things.
emotionalism is strongly linked to irrationality. once someone is irrational I'm not following how that can be reduced to a "difference in priorities". I'm an open source maintainer of some very popular projects. more in the early days, I was certainly irrational on a few occasions where someone called out things that I did wrong and I refused to see it. It wasn't like I had de-prioritized "making sure the code is no…
This has significance, it's not just a restatement of "the problem" using different terminology. It's significant because the brain, like every other part of the body, evolved parsimoniously, and it does not have spare capacity lying around, so anything that "distracts" the emotional parts of the brain will diminish rational capacity. "Hangry" is not just a pun/quip about being hungry, it's empirically measurable, it affects outcomes.
Debating rational topics with your rational friends, whether at work, at school, or after hours over a beer, it's fun (emotion), can be frustrating (emotion) but does it ever not get heated (more emotion)?
The brain is an emotional organ. All the other organs are rational, they do what they do in entirely predictable and logical ways.