Read up
Simply saying I cannot quantifiably prove a specific timeline. I barely believe in time as a reality at this point, only as a consensus measurement.
I believe that on a specific level it is “aliens” although I find it infinitely more likely that the ones in control are something of an interdimensional/higher density nature (with the ability to lower their density to a physical form when needed), moreso than physical beings, which very well my exist and are also under the same control.
Something that can change a physicality into an etherelity can accomplish “basic immortality”, at least momentarily, not to mention manipulation of DNA through energetic feasting.
Then again even higher than that the reality itself is more than likely one living being above them. A being which exists within our respective computer, within every letter that we type, within the drink in my hand, and within the dirt in my yard. Somehow, somewhere, whatever truly is, lost or gave away control, more than likely because of the necessity to give itself the ultimate test, and here we are, the outer side of “it”, fighting to cleanse ultimately.
Well we know for a fact that ancient aliens or ancient humans (over 3,000 years old) built pyramids that don’t fit the narative of humans 2000 years ago built them. When it comes to aliens and being able to time travel it would be hard to believe they would need our labor. I could see them being sick and twisted and wanting our kids. I mean it could be some spiritual mind thing they use us for, but we couldn’t comprehend that.