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XP is the central progression metric. It feeds the user level curve and the USBI entitlement formula.

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Core formula

Every Crystal (CRS) you spend in the Bini App produces exactly one XP. There is no multiplier, no loss, no exception.

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Cap

Once you have spent 1B CRS, you are at Level 30 (Genesis) and your XP no longer counts for level progression. The cap exists so the level system has a clear endpoint and the maximum USBI entitlement is defined.

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What counts as CRS spend

Every action that consumes CRS gives XP: Earning CRS (mining, claims, daily calendar, referrals) does not earn XP. Only spending does.

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Why “spend” not “earn”

The model rewards engagement and risk-taking, not passive accumulation. Hoarding CRS doesn’t level you up. You must commit your CRS to a sink for XP to flow. This also means there’s no incentive to farm-and-hold — the optimal strategy is consistent spending into productive sinks (lessons first, bridges and other sinks later).

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Formula in code

For implementers:

USBI Formula

XP → USBI entitlement

User Levels

XP thresholds for each of the 30 levels

Lessons

Lesson costs (largest XP source for new users)

Bini App: Claim

Where users earn the CRS they later spend