What is Christopher’s scientific view on the existence of humans?

Christopher explains why it is not so surprising that there are humans in the world and that if you think logically you can work out why everything in the world has happened. He uses this as evidence that there is no God. Christopher thinks that people who believe in God are stupid and illogical. He then talks about replication, mutation and heritability, explaining
that enough trials over an infinite period can provide for any number of events and possibilites.