There are beliefs that directly pay rent, and then there are beliefs that are logical consequences of rent-paying beliefs. The same basic principles that give you applied math will also lead to pure math. We can justify spending effort on pure math on the grounds that it may pay off in the future. However, our belief in pure math is tied to our belief in logic.
If you asked whether this can be applied to something like astrology, I’d ask whether astrology was a logical consequence of beliefs that do pay rent.
I am not making the statement “exclude pure math”, I am posing the question “if pure math stays, what else stays?”
Maybe post utopianism is an abstract idealisation that makes certain concepts precise.
There are beliefs that directly pay rent, and then there are beliefs that are logical consequences of rent-paying beliefs. The same basic principles that give you applied math will also lead to pure math. We can justify spending effort on pure math on the grounds that it may pay off in the future. However, our belief in pure math is tied to our belief in logic.
If you asked whether this can be applied to something like astrology, I’d ask whether astrology was a logical consequence of beliefs that do pay rent.