Some questions, slowly answered.

The Compatibility Code is an observatory for the cartography of relationships and the inner life. The flagship test uses the four classical elements (Fire, Water, Earth, Air) as a vocabulary for the inner weather two people bring when they meet. A second test, the Numerology Portrait, draws on a different ancient framework: the patterns hidden inside a person’s name and date of birth. A third, the Numerology Deep Reading, is launching shortly. The publication, called Field Notes, draws long-form essays from this work, slowly, over time.

These are not personality tests. They are maps.

Not in the predictive sense. Astrology forecasts what will happen, on the basis of patterns the reader cannot verify. A cartographic study describes what is already happening, in language specific enough to pay attention with. The Code does borrow vocabulary from the older traditions (the four elements have been a human framework for at least three thousand years, in Greek, Vedic, Egyptian, and Indigenous cosmologies), and it borrows from depth psychology, particularly Jung’s reading of the anima and animus.

But the test does not ask for a birth chart, a birth time, or a sun sign. It does not predict whether the reader will fall in love. It describes the materials the reader brings when they do.

The four elements are Fire, Water, Earth, and Air, named in this order across most of the traditions that have used them. Empedocles, the Greek philosopher writing in the fifth century before the common era, called them rhizōmata, the four roots. The Vedic tradition of India, in texts written centuries earlier, named them agni, āpas, pṛthivī, and vāyu. The Egyptian cosmology spoke of Geb, Nut, Ra, and Nun, braided into the order of Ma’at, the goddess of cosmic balance. Many indigenous nations of North America associate the elements with the four cardinal directions on the medicine wheel.

In the Compatibility Code, each of the four does a particular job inside a relationship: Fire declares appetite, Water attunes, Earth keeps promise, Air clarifies. The full field guide is at /explore.

Two tests are free; a third, paid, is launching shortly.

The Compatibility Test is a sixty-two-question instrument that reports an elemental distribution across Fire, Water, Earth, and Air. Most readers complete it in fifteen minutes. It can be taken alone, with a partner in the same room, or sent to a partner to take asynchronously. Free.

The Numerology Portrait draws a surface reading from a name and a date of birth: Life Path, Expression, Heart’s Desire, Personality. It is shorter than the Compatibility Test, and it works alongside it; many readers take both. Free.

The Numerology Deep Reading, launching shortly, goes further into the same numerological framework: karmic patterns, life phases, the shadow numbers most readings ignore. A paid reading.

The free tests require no account. Results arrive in the browser and in an email.

The work draws from a long human conversation that has been running, in different vocabularies, for at least three thousand years.

Empedocles’ fragments. The Vedic Pancha Mahabhuta. Carl Jung’s depth psychology, particularly the anima and animus. Steven Forrest’s four contemporary elemental books (The Book of Earth, The Book of Air, The Book of Water, The Book of Fire) and his Sun Signs work. Liz Greene’s astrological writing on Saturn and Chiron in love. Barbara Hannah on the animus. Esther Perel’s clinical observation of long relationships. Maria Popova’s contemplative essays on the long arc of ideas.

The Compatibility Code does not invent. It continues. The bibliography is partial, and growing.

No. There is no incompatible pairing in this map. There are pairings with different costs and different gifts. A Fire-led partner with a Water-led partner produces what the brand calls steam: heat changing what depth knows about itself. An Earth-led partner with an Air-led partner produces something quieter and structurally durable, the thinker who also keeps the calendar. Each of the sixteen distributions has its own weather pattern.

The same-element pairings have their own tax: instant recognition without the friction that usually produces growth. There is no best weather. Only the weather you are actually living in, and what to do with the knowing.

The word compatibility comes from the Latin com-pati, which means to feel-with, or to suffer-alongside. To be compatible with someone is not to match them. It is to be made of materials that can feel each other’s weather. The Code maps which materials are present in the reader and the partner, and what each pairing is being asked to do.

This is a different question from "are we right for each other." That question has no answer. The cartographic question is: what kind of fire meets what kind of water, when two whole cosmoses find each other.

The test produces useful information from a single profile. The Solo result already locates the reader inside one of sixteen distributions, names what they lead with and what they return to, and describes the pattern of the relationship they are likely to find themselves inside. A reader can map the territory without the partner’s coordinates. The Duo and Send-a-Link modes deepen the map; they are not required for it to be useful.

The brand’s view is that the work of relationship is mostly the work of self-knowledge anyway. One reader paying close attention is sometimes enough.

The free tests require no account. Results are sent to the email address the reader provides, and stored only long enough to deliver them. The brand does not sell, share, or analyze submission data, and it does not use trackers or advertising pixels on the test pages. Names appear in the reader’s own results email and nowhere else.

The full privacy policy is at privacy policy.

Astrology predicts. Cartography observes. Predictions tell the reader what will happen; observations name what is already happening, in language specific enough to act on. The Code does not forecast whether the reader will marry, divorce, fight, or reconcile. It maps the materials the reader brings, and the kind of weather those materials make when they meet someone else’s.

The reason vocabulary matters is that attention without language collapses back into mood. Something is off between us this week is the sentence of a relationship that has run out of language. I am Fire-led and exhausted, and you are Earth-led and unmet is the sentence of a relationship that can be repaired. The Code is not a substitute for the partnership. It is a map you can lay over the partnership when you need to see where you are.