yes i do,

Like the pyramids are older than believed

egyptians inherited them, the sphinx has erosion on it that goes back well before the egyptians took over.

humanity achieved high technology prior to the ice age

yes, all the megalithic blocks show this, there is tool marks and drill marks. and the drill marks are vertical not like a spiral as one would expect.

there is many theories to the pyramids use. To being a water pump, or electrical generators (like teslas wardenclyffe) and the pylons would collect it.

did you you there pyramids all over world some build the same way? and they are erected in line. North America had them too, but were wiped out by the ice age.

you could go back to enki, and it even goes further back... to a war

Anyone got more specific examples?

this is such a broad question... I would have to write a book to explain it all.

I've heard of a lost city, once a place of wonderous mechanical and industrial achievements, so much so that even the poorest members of it's society were given decent jobs, and taken care of long after they grew too old to work.

Unfortunately the elites of this city grew greedy, and lost their way. Eventually it was overrun by savages who sought to build nothing, instead destroying and taking as they came, and the once vibrant city declined into ruins.

I think it was called 'Detroit'.

Yeah, it's obvious to the most basic anthropologist that at the very least, humans didn't just decide to start talking, exchange ideas, and formulate towns only a couple thousand years ago. It would be more ridiculous to think the current idea of what I just said, rather than long lost civs.

I mean, homo sapiens have been anatomically the same for roughly 100,000 years, is the estimate. So the question is, if you could take a 85,000 year old human and raise them in our society, would they blend in? My guess is yes.

If interested, explore the evolution of conscience, I believe that is a huge step to at least beginning to narrow things down

I don't think ancient civilizations reached the level of tech we have today. We would have dug up a machine of some kind by now. Have you ever seen those giant mining rigs? Imagine one of those buried in the sands of time and nobody ever finding it. I mean anything's possible but I'm skeptical.

However it's obvious that ancient people had knowledge that we still don't today. Being able to move giant rocks for example. Or medicinal knowledge. Maybe they reached heights that we couldn't dream of with the resources they had. If we didn't have access to metal today, how much crazy shit would we have had to figure out using wood, ropes, and animals? It's just that we didn't have to so we didn't. And all of that would be erased by time without leaving a trace.

I believe, but have no evidence, that with the age of the habitable Earth it's possible that more ancient advanced societies existed. At least I'm open to the possibilities. The eons of time can and could have erased all traces. We actually know quite little about our own more recent ancestors, so why not an older, unknown period of advanced civilization.