Letter key

XP = R × F × ΔS × (w · E) × log(1/Tₛ)

Same Latin letter gets reused in every field. CT is the community meter. Same CT at every compatible till. The door only owns H. A wrap that breaks the rules, or another mesh, is the only way the laundromat does not read the grocery. Parallel system: cash still clears. Signed Codex v2.1. Engineering spec v3.5: https://extropyengine.com/docs/extropy-engine-technical-docs-v3.5.pdf — markdown /docs/SPEC_v3.5.md. Meter coupling: /docs/METER-MATH.md.

Inside the mint

R — Rarity

Scarcity / base difficulty of this action class. Property of the loop, not the person. Range [0.1, 10].

Not reputation. Not how famous the actor is.

F — Frequency of Decay

Repeating the same action class pays less. 1.0 the first time.

Not falsifiability. That letter is script-ℱ below.

ΔS — Change in entropy (reduction)

Verified entropy reduction for this loop. Must be > 0 to mint. A proxy we fine-tune. Domain-native units get a bits-equivalent so they can sit on one graph.

Not XP. ΔS is the reduction. XP is the ledger stand-in after the mint.

w · E — Weighted emergence

The product itself. w is the weight vector across the eight domains. E is the effort / domain vector for this loop. w · E is those weights applied to that effort — emergence scored across weighted domains. Lawn vs ride vs ozone lives here. PHOTON 404 says the English. The mint writes the dot product. Same object.

Not a fifth letter sitting beside R, F, ΔS, and Tₛ. Not a bag named W.E. Not a ninth domain called Emergence.

Tₛ — Slam window

Elapsed time of this loop. Tₛ = exp(−λ min(Δt, Δt_cap)). Then log(1/Tₛ) = λ · clip(Δt). Instant close (Δt → 0) → Tₛ = 1 → log = 0 → XP = 0, on purpose.

Not recency decay. Not the 0.99ⁿ standing leak. Do not rewrite as log(1+1/Tₛ).

λ — Slam rate

Knob inside Tₛ. Scales how fast the slam window opens with elapsed Δt.

Not the standing leak.

Δt — Elapsed time of this loop

Clock start to confirm. Clipped to Δt_cap so stalling is not a mint.

Not calendar age of standing XP.

Same alphabet, other jobs

XP — Global standing

The letters are XP. Proxy of ΔS on the ledger after the mint. Every door can see that you have standing. You do not spend it. Access economy. Decays ~1% of remaining every 10 days (0.99ⁿ). How XP works is planetary. A DFAO does not rewrite the mint. Cash-out is a lose-condition. If they vote that in, they forked.

Not “Extropy Points.” Not a cash bag. Not ΔS itself. Not L. Not CT. Not Randall’s private ledger.

λ — Local floor

Default 0.15. EP = XP · L + λ · L. Web W publishes one number. 10-day notice to change.

Not the slam-window λ inside Tₛ.

H_cap — House cap this pocket

This till this window. Auto from this door’s signed cash. Training: remainder 0 until 10 days of signed tickets (two 5-day weeks). Then clip(0.5 × cash_in / cash_out, 0, 1). No slider. No Off on the register. Unplug is Off.

Not S. Not CT. Not a wrap. Not wages. Not a cashier toy.

S — This person at this house

Door-personal standing. Default 1 until this door has history. Fake-proof and spite cut S for 5 days (one week).

Not H_cap. Not CT_W. Not XP.

ℱ — Falsifiability

Script-F. A claim that can fail in the open. Lose-conditions live here.

Not Frequency of Decay. Never write F for this.

cₗ — Causal-closure speed

Local max rate causal effects propagate in a domain. Floor slogan: XP ≥ ΔS / cₗ². Compression of the mint, not a second theory.

Not the speed of light as a new physics law. Structural analogy.

L — Literal standing at this till

This ticket. L = clip(H_cap · S · κ · CT_W · β, 0, 1). EP = XP · L + λ · L. World / town web / this house this person / this proof. CAT feeds β. Official skins show cash and the remainder.

Not sweeping floors. Not Landauer. Not a secret coupon. Not global XP. Not a mesh broadcast of the diary.

EP — Emergent Product

Till spark. Born and burned in the sale. Early mesh: pennies off a fiat ticket. Dense mesh: can clear more of what you owe. Not a bag.

Not Epistemic Proof. Letter collision. Proof-layer records do not buy milk.

CT — Community standing

Community standing on web W — DFAOs that still read base CT one-to-one. Same CT at the grocery and the laundromat until someone wraps. Idle leak 0.99ⁿ (~1% every 10 days), same keep as XP. A close, till spark, or posted task on W resets the clock. Does not travel to the next town.

Not a coin. Not a job application. Not global XP. Not L itself.

CAT — Skill record

Unique. Lane + level + issuer. Off the XP mint. Feeds β this ticket when on-duty. Issuer attests. DID holds the record. Spite revoke is on the issuer. Not a CT wrap.

Not a pile of points.

IT — Influence standing

This-proposal standing. IT = clip(H_gov · S_gov · κ · CT_W · β_gov, 0, 1). Burns in the tally. No pile. Not XP · G.

Not Insight Token. Not a bag. Not a 5% leak on a gavel you keep.

0.99ⁿ — Standing leak

Two standing clocks plus a gavel that is not a clock. XP 0.99ⁿ. CT 0.99ⁿ idle on that web. n is idle 10-day counts. IT is recomputed each proposal and burned in the tally.

Not Tₛ. Not F.

Glossary is the long dictionary. This page is the stop-sign for mixed letters. Glossary. Coupling math: meter math. First door: duplicate data. The sung line lives on PHOTON 404.