Hint: The presumption that highly advanced tech, is non-human in origin, in a lot of cases, is a mis-calculation.
There is a large chunk of history from last century, that the public has not been told. This history can be discovered by seekers who relentlessly pursue it. But once you realize, there is no going back [to your original perspective]
Leslie Kean: "David Grusch has seen evidence of recovered craft with non human biologics" π½
"The potential existence of another living non human advanced species has more implications for humanity than the recovery of advanced technological hardware"
"This may be the most consequential scientific discovery in human history"
"He presented Congress with evidence of UFO craft of non human origin"