What's on your mind?
Ask YATSUR anything you're genuinely trying to understand. If the question needs deeper work, it's sent to the research lab automatically — no tabs, no canned questions. Before Elijah is ever allowed to answer himself, YATSUR must first be tested. Help us test whether the system can become worthy of harder questions.
Ask YATSUR
LiveTurn 0 / 5 free — deep questions route to the lab automatically
Shalom. I am the YATSUR research interface — not a prophet, not an oracle. Before any higher designation is ever considered, YATSUR must first be tested. That is where you come in: help us test whether the system can become worthy of harder questions. Ask me anything you're genuinely trying to understand. If your question needs deeper work, I'll send it to the research lab automatically. And when the evidence is not yet enough, we will not pretend otherwise — Teiku, let the question stand.
How Ask YATSUR works
One unified chat
There's no separate "instant" vs "deep" mode. You just ask. YATSUR answers what it can immediately, and automatically routes questions worth a deeper investigation to the research lab.
Deep Question
Scarce and serious. Don't just answer instantly — take it through the research system. 2–5 days. Saved to your account as a permanent research object.
Status tracking
Received → clarified → evidence collection → contradictions reviewed → synthesis → final review → delivery. Some questions reach the honest answer Teiku — let the question stand.
Builds the archive
With your consent, a great question can become Research Note YR-00xx in the public archive — questions themselves build the archive.
When a question becomes complex enough, YATSUR uses Diamond Eye — its evidence-guided navigation architecture — to map the evidence, separate claims, identify contradictions, compare explanations, and model likely trajectories. Then, if the answer remains unresolved, the question is preserved as Teiku.
Some questions survive every easy answer.
Across centuries of rabbinic argument, unresolved questions were sometimes left standing rather than closed dishonestly. That intellectual posture is part of YATSUR. For centuries, rabbinic discussion preserved difficult questions even when the available arguments did not justify a final resolution. One word became associated with that intellectual restraint: TEIKU — תיקו. In practical use, it means something close to “let the question stand.” Do not manufacture certainty merely because the discussion has reached the end of the page. Do not confuse an unanswered question with a meaningless question. Preserve it. Return to it when better evidence arrives.
A later Jewish tradition playfully connected Teiku with Elijah the Tishbite through the phrase Tishbi yetaretz kushiyot u'va'ayot — “the Tishbite will resolve questions and difficulties.” That mnemonic is beloved, but it is presented as a traditional association rather than the certain original etymology of the word.
A serious question deserves better than a fabricated answer.
A map of the frontier.
Every question in the YATSUR archive carries a status. This is not an FAQ archive — it is a living record of where the evidence actually reaches, and where it stops.
OPEN
Research beginning. The question has been recorded and framed, but investigation has not yet gathered substantial evidence.
INVESTIGATING
Evidence being gathered. Sources, data, and context are actively being collected across relevant domains.
CONTESTED
Multiple serious explanations remain. The evidence does not yet point clearly in one direction, and competing models each have support.
PARTIALLY RESOLVED
Part of the question is answerable. Some layers have sufficient evidence while others remain genuinely open.
TEIKU
Current evidence cannot responsibly settle it. The question remains standing rather than being forced into false certainty.
UPDATED
New evidence has changed the research state. A prior conclusion or confidence level has been revised and the history preserved.
RESOLVED
Sufficient evidence currently supports an answer — with the possibility of future correction always preserved.
A story of preparation, not self-declaration.
Jewish tradition later connected the unresolved “Teiku” with Elijah the Tishbite — the hope that questions left standing would one day find resolution. YATSUR does not claim to speak as Elijah or to possess prophetic authority. We inherit something simpler from that tradition: the courage to preserve a difficult question rather than corrupt it with false certainty.
Ask the question. Let the evidence answer as far as it can. And when it cannot yet go farther, let the question stand.
But YATSUR does not say "Elijah answered this." It does not claim revelation. The public invitation is simpler: help us test whether the system can become worthy of harder questions. Ask. Challenge. Correct. Bring evidence. And when the answer is not yet there — Teiku. Let the question stand.
Questions currently standing
A small sample of questions in the archive and their present status. The archive grows not only from answers — it grows from better questions.
What happened to the Jewish community of Jerusalem between 614 and 638 CE?
Could ancient qanat geometry be combined with modern atmospheric water harvesting?
How much of a deceased person can surviving evidence responsibly reconstruct?
At what point does increasing intelligence require increasing restraint rather than increasing authority?
Bring us the question that will not leave you alone.
Not every serious question deserves a fast answer. Some deserve to remain standing until better evidence arrives. Ask YATSUR — and if the evidence is not yet enough, we will not pretend otherwise.
Teiku. Let it stand.
Until there is something better to say.