Moslem thinkers had different ideas long ago but, of course, the Koran trumps all. I even brought that up when I was actually trying to discuss things with a Moslem in who had the shop next door to mine 20 years ago. I thought he was being friendly. He got very evasive and wouldn’t actually answer the question about the shape of the earth. Not for that reason, I don’t discuss anything with Mohammedans anymore. It is pointless. Ultimately the only thing they will discuss with an infidel is the infidel’s imminent conversion.