Fisherman and smiddy,
The concept that universe causing itself is no more difficult to understand. Today, with more advances in astro and particle physics we've come to realize it which immediately led to a wild search for verification. Thus physicists went out of their trodden ways seeking the so-called God particle while psychologists claimed they had located the God part of the brain. The idea was to enfold divinity in an empirical mould. But cosmologists are fairly certain now that the coming into being of the universe was due to something called a `vacuum fluctuation' because a void is not the same thing as no-thing. It teems with virtual particles that come in and go out of existence all the time. It teems with potential. It causes universes at will.