One Useful Thing

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Ethan Mollick on AI in work, education and life

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SI Score: 60/100
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english artificial-intelligence work

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What it does

One Useful Thing is Ethan Mollick's English-language newsletter about AI and its implications for work, education and everyday life. Its archive includes explanations, examples and reflections on changing capabilities.

A worked example can help make a capability claim concrete. Read the model and setting attached to it, since a demonstration's result does not automatically transfer to another task. The About page links free prompts and resources at Wharton's Generative AI Labs alongside the newsletter archive.

Best for

Readers considering practical uses of AI

Sources

One Useful Thing | Ethan Mollick | Substack (Oct 26, 2026)
One Useful Thing (Oct 26, 2026)
About - One Useful Thing (Oct 26, 2026)

SI Score

60/100

#38 in Newsletters

Based on published information. No hands-on task test.

Method 2.0 · Published source review Assessed Oct 26, 2026Score ceiling for this evidence: 84/100.

Product usefulness 60

Evidence

Research-oriented writing connects AI with work, education and life for a specific background-reading task. The separately linked prompts do not establish a worked newsletter demonstration or a tested model capability.

Limits: AI review of saved source passages. No hands-on test, human approval or automatic-provider checker receipt.

Source links and check dates are in Sources and checks below.

Separate website checks

These checks do not add points to the SI Score. They inspect the website's HTML, not the product in use.

Basic website checksunknown

No check recorded.

HTML accessibility checksunknown

No check recorded.

Homepage HTML responseunknown

No check recorded.

Trackers in homepage HTMLunknown

No check recorded.

Page date hintsunknown

No check recorded.

Policy links do not verify a company's conduct. An HTML response time is not application speed. Tracker and accessibility checks miss behavior after page load. Copyright dates do not prove product upkeep.

How the SI Score works →

Unconfirmed details may be unassessed, absent from the pages checked or temporarily unreadable. A missing price does not mean the service is free.

Sources and checks

Supporting pages for product usefulness, site facts, prices and separate website checks. Each record keeps its own date. Reading a page does not establish how well the product performs in use.

www.oneusefulthing.org/
- Product usefulness evidenceChecked Oct 26, 2026
www.oneusefulthing.org/about
- Product usefulness evidenceChecked Oct 26, 2026

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