I did not say they had the technology, I did say that they might have had the tools that made the perfect cuts.
If aliens were on earth then where are they now? And why isn’t there any solid proof of their existence? Why don’t we find any of their skulls buried or in amber, and more importantly why don’t I have alien cousins? Lol.
We all know that a lot of knowledge has been lost, civilizations were destroyed in rain, floods, and earthquakes.
Growing up in India, I have seen many temples which look as if they were designed and built by aliens, but no, all of these temples were built by humans. Some temples even took more than a hundred years to build, and there are many which are carved out of single piece of rock/mountain.
All all of these were built with simple tools.