There's nothing out there that ain't us.
= = =
My relative who worked around them is 100% in disagreement.
Though he asserts that "they" --ET's-- helped us build our own fleet.
We don't know much about ourselves. It's probably that we have such short lives so that even 100 years is considered extremely aged that we each have to start from scratch and disregard the advice of our elders. One thing seems certain--we can know only what we ourselves create.