SAPIR 861 · Principles

How a calculation differs from divination

We work with the numbers of a name. That is close to what diviners do, so the position has to be stated plainly, not hinted at.

The same input always gives the same number

You can test this in a minute: enter your name twice, on different days, from different devices. The number will not change. Divination does not survive that test — there the answer depends on who is asking, when, and in what mood.

The arithmetic is fully open

The home page has a “Show the calculation” button: the name, the letters, each letter's value, the sum. You can take a sheet of paper and redo it. No diviner will show you how the answer was reached, because there is nothing to show.

We do not talk about the future

Not one of our reports contains a claim about what will happen. We describe structure: what the number means, how that trait usually shows up, and what to do with it. The decision is always yours — and that is not fine print, it is how the product is built.

Gematria's place in the tradition is modest, and we do not inflate it

Gematria is the twenty-ninth of thirty-two interpretive rules, and it functions as asmachta: a supporting hint, not a proof. It reinforces a conclusion reached by other means; it does not derive new law. We stay exactly inside that frame: the number highlights something you already knew about yourself but had not named.

A calendar of good and bad days contradicts the tradition it cites

Rambam calls astrology falsehood. Ramban, disagreeing with him, still forbids asking, on the strength of “be wholehearted with the Lord your God.” And above both stands “ein mazal le-Yisrael”: an inclination does not rule a person, because choice stands higher. That is why our calendar describes the structure of the year instead of sorting days into lucky and dangerous.

We know about the Barnum effect and do not use it

A text that fits anyone feels precise if it flatters, if the person asked for the reading, and if the source looks authoritative. Those are the three levers the whole prediction industry rests on. Our defence is simple: the number is falsifiable. If you recompute and get something else, we were wrong, and everyone can see it.

Sources — every one of them can be opened and checked

We do not reprint anyone else's texts — we link to the primary source so that you read it yourself rather than in our paraphrase. In the tradition itself gematria counts as asmachta: a supporting hint, not a proof. We stay inside that frame and do not turn a number into a verdict.

• Leviticus 19:26 — the prohibition of divination
• Deuteronomy 18:10–12 — the list of forbidden practices
• Deuteronomy 18:13 — “be wholehearted with the Lord your God”
• Ramban on Deuteronomy 18:13 — why one may not ask
• Shabbat 156a — “ein mazal le-Yisrael”
• Rambam, Mishneh Torah, Foreign Worship 11 — on divination and astrology
• Rambam, Mishneh Torah, Repentance 5 — free will
• Rambam, “Letter on Astrology” to the sages of Montpellier — full text
• Jewish Encyclopedia: “Gematria” — gematria as the 29th of the 32 rules
• Yeshivat Har Etzion: asmachta — a supporting hint, not a proof
• Saul Lieberman, “Hellenism in Jewish Palestine” — the Hellenistic context
• Open Scriptures Hebrew Bible (Westminster Leningrad Codex) — the Torah text, CC BY 4.0
• Strong’s Hebrew Dictionary (1894), Open Scriptures digital edition — word meanings

The Latin table of Agrippa, 1533 — why it is not Jewish gematria

What we promise and what we do not