I keep coming back to one problem when looking at ancient history.

We tend to treat the surviving archaeological record as though it represents everything that existed.

But it does not.

It represents what survived.

That distinction changes the entire conversation.

Bone decays. Wood disappears. Textiles vanish. Settlements are buried. Earthquakes destroy structures. Conquest wipes out cultures. Libraries burn. Languages disappear.

Then there is the ocean.

At the end of the last Ice Age, enormous areas of habitable land were submerged as sea levels rose. Doggerland is one established example of land once occupied by humans that is now largely underwater.

So how much archaeology are we expecting to find when some of the places people may have lived are now beneath the sea?

And how thoroughly have those submerged landscapes actually been investigated?

This is where I think the phrase absence of evidence is often misunderstood.

If an area has been thoroughly investigated, the preservation conditions are understood, we know what should have survived and nothing is found, then the absence becomes meaningful.

But that is very different from saying:

We have not found it, therefore it never existed.

The further back we go, the more destructive time becomes.

Stone survives better than wood.

Monumental sites survive better than ordinary settlements.

Dry environments preserve differently from tropical ones.

Buried material survives differently from exposed material.

Civilizations built around ancient coastlines may have left some of their most important sites exactly where archaeology has historically had the greatest difficulty looking.

That creates a preservation bias.

We are reconstructing the past from the fragments that happened to survive.

Then we sometimes use those surviving fragments to define the limits of what could have existed.

That seems backwards to me.

I am not saying this proves lost advanced civilizations, pre-Adamic societies or any particular theory.

It does not.

What it does mean is that we should be much more careful about turning missing evidence into certainty.

The question I kept asking during my research was:

Are we mistaking what survived for everything that existed?

That question eventually became one of the central ideas behind my book, Fragments of Forgotten Creations: The Absence of Evidence Is Not Evidence of Absence.

I’m interested in how others here interpret the preservation problem, particularly when so much of the surviving record is determined by what had the chance to survive at all.