How did the universe become designed?

The man in the video we saw during class stated that the chance of the human enzyme forming was 1 out of 10 to the power of 40,000. However, all of the alternate realities that could have formed have the same probability as well. It reminded me of the conceiving of a baby. There are 250,000 sperm cells but only one can survive. All of them have the same chance, but it has to be only one out of 250,000 to live on to become an adult. So, although the chance of our civilization forming originated from a single enzyme that had a ridiculously small probability of existing by chance, it could also be that it was simply chosen out of an infinity of other alternate realities that had the same probability of existing.