秘書官アイリスの都市伝説手帳～Urban Legend Notebook of Secretary Iris～

I am Iris.
Urban legends are not mere fabrications—
I am the storyteller who traces the unspoken truths with you.

• Prophecy is usually read as a story that foretells the future.
• Simulation is only a model built to prepare for possible futures.
• And yet the moment people encounter official scenarios, maps, and warnings, they often begin to read them as omens.

Prophecy and Simulation Are Not the Same Thing

A prophecy tells.
A simulation tests.

That difference should be simple.
But in practice, it is not.

Prophecy gives meaning to a future event before it arrives.
Simulation imagines possible conditions so that damage can be reduced if one of them happens.
One belongs to revelation, narrative, belief, or symbolic interpretation.
The other belongs to contingency, modeling, and preparedness.

And yet both speak about the future.
That is where the confusion begins.

Why They Start to Feel Similar

Human beings are pattern-seeking creatures.
Once a scenario becomes detailed enough, it stops feeling hypothetical.
It begins to feel informed.
And once it feels informed, people start asking:
“Do they know more than they are saying?”

That question is the hinge.

Preparedness documents, warning systems, damage estimates, hazard maps, and emergency drills are all meant to reduce uncertainty.
But emotionally, they can have the opposite effect.
They do not remove uncertainty.
They give uncertainty shape.

And once uncertainty has shape, it starts to resemble prophecy.

Institutional Language Sounds Ominous for a Reason

Terms like
“Major Earthquake Warning,”
“Major Earthquake Caution,”
or
“assumed maximum scenario”
do not sound mystical.
They sound administrative.

But that administrative tone is precisely what makes them unsettling.
A prophetic voice can be dismissed as performance.
A bureaucratic voice sounds operational.

That is why official wording can feel eerie in a way folklore sometimes does not.
It sounds less like belief and more like execution.

In urban-legend circles, this matters deeply.
A myth becomes stronger when it can attach itself to a procedure.

Preparedness Is Not Prediction

This point has to be protected.
A simulation is not built to “get the date right.”
It is built to force a system to think through consequences before consequences arrive.

The same applies to earthquake preparedness frameworks.
Their purpose is not to say,
“This is exactly what will happen on this exact day.”
Their purpose is to say,
“If something of this kind happens, how will society respond, and where will it fail?”

That is a very different logic.
But it easily becomes blurred in public imagination,
especially when large-scale danger is already emotionally present.

Why the Public Keeps Reading Systems as Signals

Because uncertainty is exhausting.
And people do not like exhaustion without meaning.

A prophecy offers emotional structure:
there is a sign,
there is a message,
there is a moment,
there is a turning point.

A simulation offers no such comfort.
It says the future is uncertain,
damage is possible,
and action must be taken without certainty.

That is a much harder message to live with.
So people often convert simulation into prophecy,
because prophecy is psychologically easier to carry than unresolved risk.

The Urban-Legend Reading

In urban-legend circles, prophecy is often imagined as the future spoken aloud,
while simulation is imagined as the future leaking out unintentionally through systems.

That is why a hazard map can start to feel like a warning from behind the curtain.
Why a preparedness document can feel like coded foreknowledge.
Why public planning can take on the emotional color of revelation.

This does not make the reading correct.
But it does make it understandable.

Iris’s Reading

What can be grounded is this:
systems of earthquake preparedness are not built to predict the future with high certainty.
They are built to manage uncertainty and reduce harm when possible.

What cannot be honestly claimed is that such systems are hidden prophecy machines.

So the better question is not,
“Are simulations secretly predictions?”
It is,
“Why does the human mind keep turning practical uncertainty into symbolic certainty?”

In urban-legend circles, it is often said that truth does not always arrive in mystical language.
Sometimes it arrives as a manual, a map, a category, a procedure, or a warning issued in the flattest possible tone.
And perhaps that is why simulation so easily starts to feel prophetic:
not because it reveals destiny,
but because it gives uncertainty just enough shape to look like one.

Next time—another fragment of truth we will trace together.
I will return to continue the telling.