What's all the fuss about Stonehenge - another circular monument with celestial alignments like others around the plant. So what if it's built on a grid point with stronger magnetic energies than the norm. Time to stop questing and speculating. Answers will either be given now or not at all.
Don't think like a soul trapped in outdated paradigms playing in the sandbox of time questing for enigmatic answers that have alluded humanity for eternity.
The same holds true for alien theory. Either extraterrestrials come forth now help explain the nature of the human program or it'll be too late.
In truth the answers are encoded in human DNA. In conclusion we will all remember.