This Just came up - was watching anYT video where a man just claimed that enginerers and humans just were one part of the chain with another beeing being above
I was just thinking f we could compare the engineres to the dinosaurs -
my old man,being a bit religious, said that the dinosaur was there to clean up the world
what if the engineers had the same purpose, to clean up, but then they got wiped out by David (and their deadly experiments)
with them out of the way the zenmorf from the black goo fusioned with Shaw would then create the aliens