We can rarely find a fairly well preserved low tech vessel under very uncommon circumstances, but ships of the 19th century when found at all are seldom more that traces of rust in the sand.
Aircraft lost in very deep very cold water during WW2 have been found in a remarkable state of prevservation, but aircraft of the same type found in shallow warmer waters are usually ghostly skeletons crusted with marine life that dissolve even aircraft alloy as they make their home.
Bought (non-fiction) DEEP TIME by Gregory Benford at a thrift store recently: "Heavy materials such as thick parchment, clay, and stone stress time and endurance. Media emphasizing space-saving are apt to be light and less durable, such as papyrus and paper.... We hear down the corridors of history from eitherthe original, durable media, or the flimsy forms that must be continuously renewed, as in the copying of ancient texts by monks in medieval times. Our century's electromagnetic media, from radio to the optical disk, are more perishable still."
Disk drives have very limited warranties. Comic book scans will need to be copied over and over REDUNDANTLY to survive.
Anyway, re the discussion, maybe modern day relics won't survive so well thru time.
Looking in trash dumps (for old bottles), I see that cans rust away relatively quickly, glass bottles last longer. Don't know how long plastic bottles will last, but know that biodegradable plastic has been developed.
The Bronze age computer found in the agean was in much better shape than a Japanese zero I once saw photos of during attempts to salvage it.
It's mechanical rather than electronic computer.
Probably high tech electronic computers wouldn't be identifiable after so long.
Arguments against a pre deluge socirty with high technology all seem to be the logical flaw of argument from ignorance, with a good deal of over estimation of the accomplishments of modern archaeology and scientific investigation thrown in.
Benford claims that radioactive dating methods have improved.
I believe dating that shows that the Shroud of Turin isn't from circa 32AD.
The Hindu Mythology includes descriptions that could easily be interpreted as nuclear warfare using precision guided tactical nukes, and cloning using skin samples and body fluids.
Oppenheimer on nuke explosion: "Now I am become Death, the destroyer of worlds."
Mahabharata descriptions also include what sounds like aircraft.
I'll read up on the possible cloning descriptions.
The ancient medical symbol the caduceus depicts two serpents coiled around a staff. The coiled serpents look like DNA double helix. Serpents have dual symbolic meaning: knowledge and danger.
"A little bit of knowledge can be dangerous." Alternate interpretation of Garden of Eden myth is end of childhood innocents with Adam and Eve discovering sex and having to leave homes of their parents and make their way in the world.
A workable aircraft model has been found among artifacts from ancient Egypt. I had my doubts about that one till they reconstructed it and tested it in a wind tunnel.
http://paranormal.about.com/od/ancientanomalies/ig/Most-Puzzling-Ancient-Artifact/Ancient-Model-Aircraft.htm
Accounts of high tech objects found out of place in ancient strata are fairly common, and so poorly investigated and recorded that they tell us nothing. In general anything that looks out of place is dismissed without looking further.
Google Charles Fort. BOOK OF THE DAMNED. What doesn't fit into orthodox science is generally ignored by the orthodox scientific hierarchy.
Like older religious hierarchy made heresy of what didn't fit their orthodoxy.
I highly recommend Robert Anton Wilson's THE NEW INQUISITION (subtitled Irrational Rationalism and Citadel of Science), which unfortunately appears to be currently out of print.
Amazon shows a few pages from it tho.
Also see
http://en.wikipedia.org/wiki/The_New_Inquisition
To some extent this has proven to be the proper course. A case in point is an unusual helmet found in a dig at a level that suggested it was of Viking origin. The helmet was haled as an important new find. Unfortunately it was later identified as the protective lining of a Messerschimdt 262 jet fighter pilots helmet from WW2. The unfortunate pilot had hit the ground with sufficient velocity to drive his head into the previous mellenia of strata to meet his Germanic Ancestors. That did little for the finder's reputation I dare say.
What are your thoughts on this in general?
What would remain of our own present technology ten thousand years after a world spanning catastrophe?
A truly advanced society might leave far less of a footprint than our own wasteful and garbage strewn societies.
I think this is a very fascinating topic.
Showcase Rip Hunter stimulated my interest on these areas.
I believe the issue with aliens in ancient Egypt predates Daniken's CHARIOTS OF THE GODS.
The issue before that one had dinosaurs in Medieval Europe.
Peace (after Justice),
Bob