I don't know, but it was definitely an infinite universe. What was the universe like when it was a femtosecond old? I don't know, but it was an infinite universe. How about a zeptosecond old? A tenth of that? One quintillionth of a zeptosecond? One quintillionth of that? One quintillionth further still? No matter what you do, an infinite universe in which you can never pin down a precise moment of creation, because it obviously doesn't exist. There is only one truth: the Universe is Infinite.