You can’t rule out ancient humans having these kinds of capabilities, I just don’t see the reason they would go through all the effort. Some of them would be very difficult even today. Then again, you have a civilization so advanced it can move between the stars, coming here to stack blocks of stone and then leaving. Makes even less sense. There is a third possibility—an ancient civilization dating very far back and reaching a higher level of sophistication than we have yet discovered. Nearly all signs of them could have been wiped out by time.
Think about it. I have even had educated friends say as much. “Things just get better and better with each generation. We just figure the next thing out.” It is called “PROGRESSIVISM”.
So, when undeniable evidence of advanced technology from over 10,000 years ago exists then it HAS to be “Aliens” because otherwise “Progressivism” is WRONG. SInce smart libtards can’t BE wrong, hence it is Aliens. Perhaps no better evidence of deluded thinking on the part of libtards.
There is a school of thought championed by Graham Hancock and Russell Carlson that there was a sophisticated human sea faring civilization that was pretty advanced. They theorize that comets hit the Arctic ice caps around 12,000 years ago causing them to instantaneously melt and flow down the earth wiping out most of the civilization. This is the great flood spoken of in the Bible and almost every other culture. An ancient site in Turkey-Gobleki Tepe- seems to confirm this in recent findings. It would tie a lot of tales such as Noah and Atlantis together. There is also a great deal of soil borings that bear out this catastrophe. Listen to the Joe a Rogan Podcast with Hancock and Carlson for all the science behind it. You could also read Hancock’s recent book which is fascinating