Sure,...some questions are beyond our knowing, although we may have some insight or explanation to provide. - it will be limited to our own understanding or knowledge (or lack thereof).
Possibly,.....but in the art of dialogue or debate,....each person can use his own genius (or lack thereof), creativity and use of language to engage in a constructive, engaging and civil manner,...its all up to those 'contributing' to the discussion to make it what quality and value it turns out to be....and in 'discussion' there is that creative element to it which makes it fun and exciting.
pj