That invites a rather optimistic view of mind. If we have a mind deprived of emotions but similar to us in other we expect that it will on average fare better than ours. Not because emotion is somehow _underlyingly_ irrational but because it tends to intensify our biases (and be the main motivation for some of them—affective death spirals come to mind first).
You could respond that curiosity and having something to protect are both based on emotions—but that’s human motivation for rationality not guarantee of its efficiency, and both, unless supported by a good model, can also be fulfilled by religion. Truth as an instrument could be sufficient for emotionless brain as well.
That invites a rather optimistic view of mind. If we have a mind deprived of emotions but similar to us in other we expect that it will on average fare better than ours. Not because emotion is somehow _underlyingly_ irrational but because it tends to intensify our biases (and be the main motivation for some of them—affective death spirals come to mind first).
You could respond that curiosity and having something to protect are both based on emotions—but that’s human motivation for rationality not guarantee of its efficiency, and both, unless supported by a good model, can also be fulfilled by religion. Truth as an instrument could be sufficient for emotionless brain as well.