Maybe the timelines flow this way…

CERN creates a (only one???)StarGate and after a few years the StarGate become normal enough for civilian use…years after some billion people are now on other planets…CERN decides to upgrade and causes the "Singularity"…which starts planet Earth all over again…which could be how they were able to find the sandskrits, the StarGate, the pyramids and pic attached…