Yes, that's the standard hypothesis, but no one in the modern era has been able to duplicate such feats of engineering - though it's been tried many times.
Consider this. The 'trilithon' foundation stones of the Temple of Jupiter in Baalbek, Lebanon weigh 800 tons apiece, and an unused block in the quarry nearby weighs in at 1,200 tons.
The obvious question is, how were such megalithic stones quarried, dressed, then moved and set into place by the ancients, who didn't have access to the technology required to accomplish such a feat. We can't do it ourselves, even with the best of our modern technology.
As I said, skeptics will adamantly insist that it was done with simple stone implements, leverage, and tremendous amounts of manpower, but that's never been more than an assertion. It's never been proven, though it has been tried.
The fact remains, though, these inexplicable monuments are there, and someone obviously did have the tools and technology to put them there.
I believe we err when we attribute their building to the ancient humans of our own recorded history. I believe the simple answer is that they were built by an earlier, high tech society that was wiped from the earth by some major cataclysm tens of thousands of years ago. Time obliterated all traces of these people, except for the megalithic stone structures they left behind.
The obvious question is, how were such megalithic stones quarried, dressed, then moved and set into place by the ancients, who didn’t have access to the technology required to accomplish such a feat.
Not to mention that each one had to be cut, transported,
and set in place every few minutes to fit into the
supposed 20 year time frame given for construction.
“no one in the modern era has been able to duplicate such feats of engineering”
I’m mostly satisfied with their examples of how they did it.
Like the great Pyramids...stones rolled on logs and so on.
“800 tons apiece” in some cases the stone was level or below the surface and carved out where it lay.
Otherwise, one can move massive stones using basic leverage and pulleys...like i said, rolling on logs.
I can move a stone the weighs as much as myself using a tow bar and a rock. If i had 1,000 of me i could move 1,000 times< or more, my weight.
I do not entirely dismiss that super beings may have been here once upon a time...its as good, probably better, explanation that we elvolved from ooze or apes or whatnot.
“our modern technology”
I think applying modern technology to long since lost or forgotten technology is a mistake. I hooked up a phone from the 1950’s ad it was in many ways far superior to modern day cell phones...the sound quality was amazing. NOt to mention the phone weighed about 10 lbs?. It’s not that the technology is lost..so much as it’s been ignored? People believe that the now in every instance is superior to anything from say, 50 years agao.
And it simply is not true.
Cheap crappy versions of items past are throw aways compare to my metal phone from the 50’s.
Likewise, it is quite possible to ignore “modern technology”
and opt to live a basic lifestyle..off grid ..basic tools (primitive) and be quite happy.
Or, as i prefer to live a combo of both modern and primitive.
They had access to lots of water and sand. Attach buoyancy to a block and the flood the place.