Why does your AI suddenly sound like a different person?

Have you ever noticed this?

Run1 feels sharp.
Run3 feels a bit softer.
Run7 suddenly sounds like a completely different person.

But nothing changed — not the model, not the prompt.

What actually changed was the structure.

When tone, logic, and behavior sit in the same block, the model slowly averages them into a single voice.
The layers flatten.
The edges fade.
And the output drifts into a new personality — even though you didn’t touch the words.

It’s not “worse.”
But it’s definitely different.

Tomorrow, I’ll talk about how to stop this drift before it starts.

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