I agree that 1, 2, and 3 together eliminate all non-mindkilling topics. For a question to be well-known and unanswered, the world must not push back on it very hard (not important). Seemingly important unanswered questions are precisely the domain of religion, on one model (“why are we here?”). And it’s been observed that the mindkilling aspects of debates increase inversely with their observable consequences.
I agree that 1, 2, and 3 together eliminate all non-mindkilling topics. For a question to be well-known and unanswered, the world must not push back on it very hard (not important). Seemingly important unanswered questions are precisely the domain of religion, on one model (“why are we here?”). And it’s been observed that the mindkilling aspects of debates increase inversely with their observable consequences.