Wittgenstein on - what things look like and if they had looked another way

“Tell me," Wittgenstein's asked a friend, "why do people always say, it was natural for man to assume that the sun went round the earth rather than that the earth was rotating?"

 His friend replied, "Well, obviously because it just looks as though the Sun is going round the Earth." 

Wittgenstein replied, "Well, what would it have looked like if it had looked as though the Earth was rotating?”