>>282982293
The AT fields separate everyone from each other, thus we all become tang when eliminated. The stuff with the First Ancestral Race isn't explained much, but when they died they sent out Seeds of Life, knowledge and power,1 per planet, w lances in case somehow someone got both knowledge and power and used that to attain godlike power and cause shenanigans. The old dead aliens probably didn't want the new species to repeat their mistakes.