Further:
A selfish person is (by definition) one who does what s/he believes is in his or her self-interest.
One can brlieve “It’s in my self-interest to argue passionately against the irrational” — perhaps for the very reasons that Yudkowsky (correctly) gives.
Therefore, it is possible for a selfish person to argue passionately against the irrational — in fsct, if the selfish person brlieves (like Yudkowsky and me) that defeating unreason makes this a better universe for him/herself to live in, then such a selfish person will join the fray and argue passionately against unreason.
Further: A selfish person is (by definition) one who does what s/he believes is in his or her self-interest. One can brlieve “It’s in my self-interest to argue passionately against the irrational” — perhaps for the very reasons that Yudkowsky (correctly) gives. Therefore, it is possible for a selfish person to argue passionately against the irrational — in fsct, if the selfish person brlieves (like Yudkowsky and me) that defeating unreason makes this a better universe for him/herself to live in, then such a selfish person will join the fray and argue passionately against unreason.