These rock constructions have always fascinated me, and I also wonder how they did it. It's true that in many cases we don't know how they built them. One thing I've learned is not to underestimate our ancestors. I believe that there is a lot of lost knowledge in human history, because no one pick the book 😂 In the past, it was also common for knowledge to be kept secret, because it could be a weapon for the enemy.

I also wish that people lived more in harmony with nature, but I am aware that there are many more people today than there were a few centuries ago, and this makes it impossible, at least in the short term, for everyone to live that way. What I mean is that for most people, it is a matter of survival.