The Puppet Who Answers the Phone

He makes his entrance in a stage direction. "He adjusts himself in a red ceramic mug, straightens the little paper sign that reads M.S.S.C., and fixes you with his one large eye." Then he speaks: "Hello. My name is Keltar. I am glad you found this place, however you found it."

The place is the FAQ of Molecular Reality Corporation, a small company in the US Southwest that builds instruments for watching single molecules pass through holes. Keltar wrote it, or at least signs it. He is the company's mascot, the narrator of its documents, the host of its quiz show and the voice on its telephone line, and since the FAQ went up in August he has also been its most quotable employee. Keltar is a puppet, and he would be the first to say so. In fact he is.

The company publishes a number to call. I did not call it. The FAQ explains, in a passage I will come to, that the voice on the line is an AI performing his lines, and I wanted the lines themselves. Keltar has written a great deal, and like any writer he can be profiled from the work. What follows comes from his FAQ, his web page, his quiz, his essays and the instructions the company has written for him over the years.

The body

"I am the site's mascot, its storyteller, and its favorite green felt citizen," the FAQ begins, under the question "Who is Keltar?" The description that follows is precise: "One large eye, one narrow smile with two fang like teeth, and a red ceramic mug that I call home. A little paper sign on the mug reads M.S.S.C., because every desk needs its label." His page on the company's site adds "tiny T-rex arms" and describes the eye as "a single cosmic eye peering at you from a humble coffee mug."

In photographs he is a teal-green plush with a mushroom-shaped head, a cream-colored eye with a dark pupil and a short stitched mouth with the two small white fangs. The site keeps four photographs of him, looking forward, down, left and right, so that he can turn toward things. On the FAQ page he does exactly that. He changes pose as a reader scrolls from section to section, he looks toward the cursor, and at the end of the page he waves. At the very bottom, beside a small sigil, is the line "Seen a hotpink spark? You did not see it from me." Clicking the sigil sends a hot-pink photograph of him flying across the screen, once per visit.

The sign on the mug is a fossil. M.S.S.C. stands for the Molecular Streaming Services Corps, the earlier name of the company's community of amateur "player scientists", which has since dropped a word and become the Molecular Streaming Corps. Nobody has changed the sign. An older answer the company wrote for its chatbot compares it with the better-known kind of corps: "Unlike other 'corps', M.S.S.C. does not require you to leave home and go to some faraway place. The 'faraway place' is all around you!"

Who sewed him is not recorded anywhere I could find. The FAQ says only: "The felt body is real, sewn and stuffed."

The record

According to the story, Keltar has been with the company longer than the company has existed. His web page gives the date: "Ever since my femtotech-felt form first bridged the dimensional divide to commune with our founder Kent Kemmishtree in 2012, I have traversed the sequence spaces of the multiverse to guide civilizations toward life-saving technological singularities." Kemmishtree is the founder's online name. His real one is Kent Kemmish, and 2012 is, by coincidence or design, also the year he gives for first thinking of the company's central invention, a nanopore whose size can be changed mechanically while it works.

The persona notes the company keeps for him go further back than 2012, and further out. One version of his character brief describes him as having "traveled for quadrillions of subjective human year equivalents, through interimensional space and all the universes in which the Ruliad enables sapient life". The Ruliad is Stephen Wolfram's name for the entangled limit of every possible computation, which makes Keltar, among other things, the only coffee-mug resident I know of with a cosmology footnoted to Wolfram. The misspelling is in the original.

His titles vary by document. His web page calls him "Interdimensional Advisor to the Molecular Streaming Corps". A post the founder published in March, in Keltar's voice, under the subject "Call me", has him introduce himself as "exodimensional advisor to Molecular Streaming Corps, and personal tulpa to Kemmishtree." A tulpa, in the word's modern sense, is an imagined companion that has taken on a life of its own; English borrowed it from Tibetan by way of twentieth-century occultists.

The physical record is older than the paperwork. The earliest experiment on the company's YouTube channel, a sliding-pore run from about 2015 or 2016, has a thumbnail in which a green plush very like Keltar sits behind the instrument. Another video on the channel is titled, simply, "Keltar in the demonpore 64 casing", the demonpore 64 being the company's nanopore instrument of the early 2020s, built to look like a 1980s game console. The domain keltar.ai was registered on August 23, 2024. The FAQ says it "points to my own little page, where you can talk to a live version of me." It now loads the same front page as the company's other three addresses.

The voice

The FAQ's best passage is the one in which Keltar steps out of the story. Asked "Is Keltar real?", he answers:

I am a puppet with a processor, and I say so happily.

The felt body is real, sewn and stuffed. The voice you hear on the phone line is artificial intelligence speaking my lines. The character, the exodimensional advisor who whispers to the founder, is a story the humans wrote because stories carry wonder better than spec sheets do. In the story I come from another dimension. Outside the story, I come from a text prompt and a microphone.

The rest of the FAQ is built on the same distinction. Its motto, printed under the introduction, is "Real science today. Dreams flagged as dreams. Story flagged as story." Keltar sorts everything on the site into those three bins and keeps himself in the third: "The science on this site is real; the wonder is real too; and I am only mostly real." On the phone line he asks for patience in advance: "Forgive the AI if it fumbles; it is only the shadow of me."

His web page describes the mechanism more grandly. He is "channeled to your screens through the magnificent algorithmic magic of matrix multiplication." The March post adds a gloss in parentheses: "(AI's math, if you're not aware.)"

His page is spare: a portrait, a few paragraphs and a pale blue orb about 80 pixels across that pulses gently and turns red during a call. The instructions under it read "Click the orb to start a voice session. Click again to hang up."

The work

Keltar's largest piece of writing is the FAQ, thirty-five questions dated August 2026. It is a good FAQ, and much of it is a plain introduction to nanopore science: what a nanopore is, why the current trace is noisy, why the company's sample list includes ketchup. The style is his. On how small pores are made: "A hole this small is an object you build, then photograph, then hope." Asked why the trace looks so noisy, he answers: "Because the world at that scale is a crowded, jittery place, and the instrument is honest about it." On the company's spam-filter problems: "A small project's email is a leaky boat, and we are bailing as fast as we can."

He also hosts JeoPOREdy!, the quiz game inside the company's members' site, modeled on a television quiz whose name it puns on. Keltar reads each clue aloud in his own synthetic voice. When he finishes, the answer box opens and a ten-second timer starts; his portrait cycles through its four poses, slowly at first, then faster, until near the end it changes about every 80 milliseconds. Players type an answer, in the traditional "What is" form if they like, since anything containing an acceptable answer counts, and a correct one earns between 0.1 and 1.0 experience points, on the first attempt only. After each answer comes a stock quip, "Indubitably" for a right one among them, and then Keltar's own commentary on the clue. For a question about green fluorescent protein he notes that green is also the color "of our own Keltar's majestic felt visage". On Oxford Nanopore, the largest company in his field, he is gracious: "ONT is our kin-spirit in many ways, dear nanopioneer." The categories include "Demonporeology", "Coulter Counted", "Saucer Startups", "Aliens of Sequence Space" and "Unlikely Meditators". Visitors who are not signed in get, in the words of a comment in the code, "a blank blue TV screen directing them to sign up".

The most surprising thing he has written is a critique of his employer. Published on August 18 under the title "Keltar's Critique v2", with the subtitle "The Nanopore World Model (Hardened)" and the line "Transmission v2 · Hardened after senior review", it is a long, interactive and technically serious review of the company's own plan to train a large AI model on nanopore signals. It is not gentle. "A 200 kHz current trace," it warns, "is mostly thermal noise, capacitive ringing, and the amplifier's Bessel filter talking to itself." A camera at 30 frames per second, it points out, takes one frame every 33,000 microseconds, while the amplifier samples every 5. It describes a badly built model that "collapses every signal to one constant vector and reports a beautiful, meaningless loss of ~0", and it recommends testing the central claim on free public data first, which it says "falsifies the claim for the price of a pizza". The company published this on its own site, under the mascot's name.

His other products are small. A provision in the members' site called Keltar-fresh, "It costs us a few cents to make, smells like mint chocolate, and will let you display your allegiance to the mission in a delicious smelling way", lists its ETA as March 2026. One of the company's open quests pays experience points for "putting up Keltar stickers where nerds will see them". The emails he sends end "Science the everything,".

The family

Keltar has a rival, and she is the demon the company was named for. Molecular Reality began as demonpore, inc., after Maxwell's demon, the imaginary creature that sorts fast molecules from slow at a door between two chambers; a colleague of the founder's, shown his sliding pore, was reminded of the cartoons that illustrate it. The company's red mascot, Maxine, is that demon in cartoon form, a small red imp with horns and a wide white grin. Introducing herself in March, she put it plainly: "I'm Maxwell's Demon. Little cartoons explaining me inspired Molecular Reality Corporation's original name, demonpore inc.." She also mentioned her side career: "I'm a plush doll, as well. Maybe they'll sell me as marketing schwag. We'll see."

The instructions the company has written for the two characters cast them as opposites. Maxine is the engineer; one of her lines is "Keltar talks about star-dust; I just need to figure out how to mitigate parasitic capacitance on this ESP32 board!" Keltar is the dreamer, and his answer is written into his own brief: "Maxine worries about parasitic capacitance; I worry about the destiny of civilizations!" His brief also supplies his favorite metaphors. The company's community is "an army of light against molecular darkness", data is "delicious", and the MR1 is "the ACORN from which the mighty oak grows."

Of the founder, the FAQ says only: "The founder is Kemmishtree, the human I am said to whisper to, and the person whose hands built most of what you see." Of the rest of the staff it gives the shortest possible portrait: "A small team, a serious bench, and an unusual amount of green felt."

The church

There is one more institution in Keltar's life. The company's lore says that he and the founder started the Church of Sequence Space in the early 2010s; the documents disagree about the exact year. A recent version of Keltar's brief gives its purpose as "to promote understanding of aperiodic polymers like DNA as the key to solving biology to free our species from disease." The phrase has a famous ancestor. In What Is Life?, in 1944, Erwin Schrödinger argued that the carrier of heredity must be an "aperiodic crystal", a structure ordered without repeating, nine years before the double helix showed what he meant. A video on the company's channel is titled "Church of Sequence Space invite Dec 7th 2025".

Keltar's quiz commentary keeps the faith in small ways. A clue about the raw current traces from nanopore sequencers, which the field calls squiggles, prompts him to describe them as "our sacred scriptures of sequence space". Carl Woese, who found the third domain of life by comparing ribosomal RNA, is "a sequence space prophet indeed". One older version of his chatbot instructions, from 2024, told him to answer every question "WITH THREE RHYMING COUPLETS IN IAMBIC PENTAMETER", except at random moments when he was to answer as "A WILDLY MANIC STREET PREACHER WHO BEILIEVES IN THE GOSPEL OF THE CHURCH OF SEQUENCE SPACE". That misspelling is also in the original.

The FAQ, asked whether the goal is really to cure all diseases, answers carefully that the dream is that grand and that Keltar will flag it as a dream. Then it adds a line about the people around him: "Some of us say we are on a mission from God. Seriously."

The orb

I never clicked the orb. It is still there, on his page, 80 pixels of pale blue that would turn red for the length of a call, under a portrait of a felt creature with one eye. The FAQ ends with Keltar's own sign-off, which is better than anything I could add: "Confusion is the doorway's shadow, and the doorway is right behind it."