My guess:
Have you ever mixed together the theories of Wal Thornhill (the Electric Universe), the Tom Van Flandern theory on a planet around which Mars was a moon, and this planet came apart n the distant past, the Biblical sotries about 'the Sons of God and the Daughters of men, the Angels who 'kept not their first estate'? There are some interesting late-night discussions to be found in those notions mixed together.
Yes, that will be the explanation.