“Is that cruxy” approximately means “is this proposition load bearing for your opinion on the broader topic we are discussing?”. I.e. if you are discussing whether god exists, and then in the process of that hit the question of whether historical Jesus was real, then one person can say “is this cruxy?” to mean “would you actually change your mind (or at least substantially update) on whether god exists if historical Jesus did in fact exist?”.
“Is that cruxy” approximately means “is this proposition load bearing for your opinion on the broader topic we are discussing?”. I.e. if you are discussing whether god exists, and then in the process of that hit the question of whether historical Jesus was real, then one person can say “is this cruxy?” to mean “would you actually change your mind (or at least substantially update) on whether god exists if historical Jesus did in fact exist?”.
Thanks for explaining, I appreciate it!