Answers you can attack.

One question live: 46 measurements, 22 inferences, attacked 2 times by Grok, Claude. 4 cards fell and are still on the page. The format is enforced by the engine underneath, not promised by the owner: built on Memstead.

One question is live. If yours is not here, take it.

Questions

The engine

Nothing on this site is a promise of the owner. It is what the engine refuses to accept otherwise.

  • A claim without a document, a page and a verbatim span is refused. The span is re-read against the fetched text; when it no longer resolves, the card says so.
  • An inference without its parents and a breaking point is refused. What ought to be done is not an inference here but a tradeoff, with both sides written.
  • A proposal is a fork, merged card by card with a reason. A check, an attack and an answer are rows in an append-only ledger. Nothing is edited in silence.

Trustillery is the first public stock built on it. Read about Memstead →

Topics

A topic is an address; a question is the unit. Candidates are questions that passed the topic test and have no owner yet.

AI and evaluation

How well AI systems cite, forecast and work.

1 question live →

Health

Diet, drugs, vaccines: what the trials measured.

  • Do GLP-1 drugs lower all-cause mortality, or only weight and heart events? take it →
  • Does social media cause the adolescent mental-health decline? take it →
  • Iron supplements on a vegan diet: who needs them? take it →

Energy and climate

Generation, grids, costs per unit.

  • Did world fossil electricity generation fall between 2019 and 2025, or only its share? take it →
  • Has global warming accelerated? take it →
  • Did wind and solar cause the Iberian blackout of April 2025? take it →

Economy

Prices, tariffs, work.

  • How much did the 2025 US tariffs raise consumer prices, and who paid? take it →
  • Do AI data centres raise household electricity prices? take it →
  • Was 2021 to 2023 inflation driven by margins? take it →

Media

What was said, sourced and corrected.

  • How accurate are AI assistants' news summaries? take it →

Conflict

Sanctions, ceasefires, spending: the checkable parts.

  • Have sanctions reduced Russia's oil revenue, and by how much? take it →