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Evidence, arguments and field notes on augmented work.

We publish what we actually find — including the results that argue against using AI.

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Featured · Evidence

The jagged frontier: why AI helps on one task and hurts on the next

In a controlled study of 758 consultants, AI raised quality by around 40% on tasks inside its capability frontier — and made people 19 percentage points more likely to be wrong on a task just outside it. Here is how to tell the difference before you commit.

Dileep · 12 March 2026 · 8 min read

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