Does the model require new species with incestuous births over generations and generations?
• Absolutely not. First generation is supertwins brother-sister from the same birth, they mate to have the second generation, brother-sister from the same parents (assuming only twins parent); their offspring are brother-sister from different parents. If an organism has a few weeks in the life cycle, it only takes a couple of years for them to have over 20 life cycles. By then, majority of the members in the organism will be remote-related.