Two things in one: (1) the etymology behind the reopened Learny question — is "Learn" a name or a realm? — and (2) the glassblowing / stained-glass language tour, tied to the reflection→glass→lux thread. Both are information you asked for directly, not naming rulings — nothing here is canon.
docs/briefs/CAPTURE_learny-reopened-linguee-realm-glass-tour_2026-07-15.mdYour instinct was right on the grammar: learn is reflexive, not transitive — you learn a thing, but you don't "learn a person" the way you teach or coach or train one. And under the hood, "learn" was never really a noun pretending to be one — it's a verb about a gesture (tracking something down), not a thing you hold. That's exactly why "Learn Keeper" doesn't parse the way "Plan Keeper" or "Code Keeper" does: Plan and Code are nouns you can keep; learning is an act, not an object.
Teach and token are etymological siblings — both come from a root meaning "to show." A teacher, at the root, is someone who shows you a sign. Worth noting since your own economy already uses "token" as a coined economy word — a nice, unplanned resonance, not a reason to rename anything.
Train is unambiguously a noun (a train of cars, a train of thought) with a clean trainer/trainee pair — your musher/mushee, jammer/jammie logic holds up structurally. The verb sense ("to instruct") is a 15th-century extension of the gardening sense: training a vine along a trellis — literally shaping growth by guided pulling. That's a genuinely good metaphor for a coaching Ember, even though "Trainee Keeper" doesn't sing the way "Plan Keeper" does — the logic is sound, the sound isn't.
The "person who helps you" sense is Oxford/Cambridge student slang from the 1830s: a coach "conveys" you through your exam the way a carriage conveys a passenger. A coach, at the root, is a vehicle that carries you somewhere — not someone who trains you by pulling. Different gesture from "train," even though they converge in modern English.
Its root sense is discernment — the knowledge that comes from cutting things apart to tell them apart — not "technical" specifically. Entered English (14c., via Old French) meaning "knowledge, learning" broadly — any organized body of it. The narrow modern sense (physics/chemistry/biology as opposed to history or art) is a 19th-century narrowing; before that, "natural philosophy" was the term for what we'd now call science, and "science" could mean any rigorously organized field of knowledge at all.
| Learn | verb only, reflexive — can't be "kept," names a realm/activity, not an Ember |
| Teach | shares a root with "token" — the "showing" gesture |
| Train | solid noun, trainer/trainee pattern works; "Trainee Keeper" just doesn't sound right to you |
| Coach | root sense = vehicle/carriage, not "puller" — a different metaphor than train |
| Science | noun, passes the Keeper test; root sense = discernment, broader than "technical" |
train-vs-practice-etymology.html
(an earlier Lab page) already uses "Lingui digs in" as the byline voice for etymology content — the
same word you used today for the softer display spelling. That page predates today's dictation. So "Lingui"
as the etymology-voice isn't a brand-new coinage landing out of nowhere — it's already the informal name
this Lab has been using for exactly this kind of content. Today's dictation (Linguee = legal spelling, Lingui
= display, both Cody's realm) is consistent with — and gives a formal shape to — something already in
quiet use. Still unruled as canon; flagging the continuity so it isn't lost.Your actual question: "what is the thing called that you put blown glass into? A forge implies a hard striking surface..." You're right to distrust "forge" — here's the real vocabulary.
This is your answer: the vessel that holds molten glass at ~2,000°F/1,100°C — where you gather glass on the pipe — is the furnace, not a forge. "Furnace" has zero anvil/striking connotation; its root is purely about heat, not about smithing.
Your instinct was correct — "forge" carries the blacksmith association (anvil, hammer, striking hot metal) because its root word means "smith's workshop," even though the Latin root itself is just "workshop" generically. Glass isn't struck, it's gathered and blown — "furnace" is the honest word.
Not the main furnace — a smaller, open-mouthed reheating furnace glassblowers use between shaping steps, to keep a piece workable without it cooling too fast. If your "reflection" mechanic has a rhythm of work → reheat → work again, this is the real term for the reheat step.
After a piece is fully formed, it goes into the lehr — a long, slow-cooling oven. Skip this and the glass shatters later from trapped internal stress. If "reflection" in your system is meant to be the slow, necessary cooldown after the hot, active work of learning/practice — this is the closer metaphor than the furnace itself: annealing is patient, gradual, and prevents the piece from cracking under its own unresolved tension. Flagging as a possible better fit for "reflection," not deciding it for you.
The ceramic pot inside the furnace that actually holds the molten batch. Originally an alchemist's term.
The flat steel table used to roll and shape a hot gather of glass, cooling its outer skin evenly.
A solid rod attached to the base of a piece so the blowpipe end can be cut off and finished. Gives you the phrase "pontil mark" — the little rough scar on the bottom of hand-blown glass.
Batch = the raw mix (silica sand, soda ash, lime) before melting. Gather = the blob collected on the pipe. Frit = crushed glass, often used as a coloring/raw material.
The lead (or zinc/copper) strips that hold cut glass pieces together — "leading" a window means fitting it with came. Unrelated to "came" the verb; from an older word for a narrow strip.
The full-size working drawing a stained-glass window is built from — same root as the paper "carton" and, centuries later, the comic-strip sense of "cartoon."
The craftsperson who cuts and sets the glass. From "glass" + -ier.
Louis Comfort Tiffany's technique — wrap each glass piece in copper foil and solder, instead of leading — allows much smaller, more intricate pieces (this is how Tiffany lamps are made, not leaded windows).
Glass, glow, gold, and yellow are all etymological cousins — the whole family is about shining. If reflection generates "glass" and glass is etymologically kin to "glow," the metaphor you're building (reflection → glass → lux/light) is more linguistically apt than you may have realized — the word itself already means "the shining thing" before you assign it any economy mechanic.
A lens is, at the root, just "the lentil-shaped thing." No deeper metaphor lurking here — but useful to know before naming anything "lentil"-adjacent by accident.
docs/briefs/CAPTURE_learny-reopened-linguee-realm-glass-tour_2026-07-15.md