[kidintech]

"radical" is definitely a word imbued with meaning in recent times and might take away from OP's point here.

I saw a version of this question in a book once and it stuck with me: "What important truth do very few people agree with you on?"

Obviously, never asking this when first meeting someone but further down the line, once you are comfortable with each other.

Does having an answer to the question phrased as such still make you a nutjob?

Personally, I value individuals that are able to ponder on this question for a while and provide a valid answer.