It's impossible for anyone to speak intelligently about living on the moon, because no one has ever lived on the moon? It's impossible to speak intelligently a

It's impossible for anyone to speak intelligently about living on the moon, because no one has ever lived on the moon? It's impossible to speak intelligently about parachuting when you've never parachuted? It's impossible to speak intelligently about being deaf when you're not deaf? Hence my downvote.