Leto II had visions of AI-driven Ixian hunter-killers annihilating all human life in the universe. That probably had something to do with it.
After the Scattering and the fulfillment of his eugenics program with the Siona gene, he no longer cares, because it is no longer possible for even AI to eradicate humanity.
After the Scattering and the fulfillment of his eugenics program with the Siona gene, he no longer cares, because it is no longer possible for even AI to eradicate humanity.