As far as we know. Who's to say that there wasn't an advanced civilization of humans hundreds of millions of years ago that wiped themselves out, and now we're re-inventing everything they did up to the point of the apocalypse, where the cycle will begin again?
We probably would have found remnants of their society. Also if there was, they would have consumed all of the easy to reach resources, and we could have not have made it this far.
If organic matter can survive (bones and even sometimes tissues), we can be very assured that hardened structures would.
Furthermore, there's nothing in the fossil record suggesting humans were around very^very long ago, so it'd have to have been a different intelligent species.
That's a bold statement. Read Forbidden Archeology, and you'll see quite a few oddities in the archeological realm. Such as metal spheres with odd, precise features, that are very very old ( http://4.bp.blogspot.com/-oiiiI75kDic/TdRv4ZsspWI/AAAAAAAAAC... )
(Yes, you can now give me the defaults:
"if this was true we would have heard of it"
"if he says something that is unconventional, he's probably a retard/arbitrarily biased"
etc. etc.
yes, go ahead)
> As proposed by Cairncross, the grooves represent fine-grained laminations within which the concretions grew. The growth of the concretions within the plane of the finer-grained laminations was inhibited because of the lesser permeability and porosity of finer-grained sediments relative to the surrounding sediments. Faint internal lamina, which corresponds to exterior groove, can be seen in cut specimens. A similar process in coarser-grained sediments created the latitudinal ridges and grooves exhibited by innumerable iron oxide concretions found within the Navajo Sandstone of southern Utah called "Moqui marbles".
> Similarly, the claims that these objects consist of metal, i.e. "...a nickel-steel alloy which does not occur naturally..." according to Jochmans are definitely false as discovered by Cairncross and Heinrich. The fact that many of the web pages that make this claim also incorrectly identify the pyrophyllite quarries, from which these objects came, as the "Wonderstone Silver Mine" is evidence that these authors have not verified the validity of, in this case, misinformation taken from other sources since these quarries are neither known as silver mines nor has silver ever been mined in them in the decades in which they have been in operation.
As far as we know. Who's to say that there wasn't an advanced civilization of humans hundreds of millions of years ago that wiped themselves out, and now we're re-inventing everything they did up to the point of the apocalypse, where the cycle will begin again?