> ## Documentation Index
> Fetch the complete documentation index at: https://docs.binibit.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Lessons

> 30 lessons × 10 levels = 300 upgrade actions. Cost and bonus formulas.

Lessons are the **income engine** of the Bini App. Each lesson upgrade increases your CRS-per-hour mining rate.

## Structure

```
30 lessons × 10 levels = 300 upgrade actions
```

Maxing all 30 lessons to L10 costs exactly **230,000,000 CRS** and brings you to **Level 10 / 24,000 USBI** (including welcome grant).

Maxing all lessons does **not** max your user profile — see [User Levels](/tokenomics/user-levels) for the full XP curve.

## Cost formula

```
lesson_upgrade_cost = baseCost × 1.217595 × 2^(lessonLevel - 1)
```

`baseCost` is per-lesson and varies. `1.217595` is the global multiplier chosen so the sum of all 300 upgrades equals 230M CRS exactly.

## Bonus formula

```
lesson_bonus_per_hour = baseBonus × lessonLevel
```

Each level of a lesson adds `baseBonus` CRS/hour. So a lesson at L10 produces 10× the per-hour bonus of the same lesson at L1.

Total mining rate at all-lessons-L10 = **184,650 CRS/hour bonus** on top of the base 10,000 CRS/hour.

## Aggregate milestones

| Lesson milestone | Cumulative CRS cost | Total bonus/hour | Reward per 4h claim | 2 claims/day | Total USBI (incl. welcome) |
| ---------------- | ------------------: | ---------------: | ------------------: | -----------: | -------------------------: |
| All lessons L1   |             224,829 |           18,465 |             113,860 |      227,720 |                      1,022 |
| All lessons L3   |           1,573,803 |           55,395 |             261,580 |      523,160 |                      1,157 |
| All lessons L5   |           6,969,697 |           92,325 |             409,300 |      818,600 |                      1,696 |
| All lessons L7   |          28,553,275 |          129,255 |             557,020 |    1,114,040 |                      3,855 |
| All lessons L10  |         230,000,000 |          184,650 |             778,600 |    1,557,200 |                     24,000 |

## How to read the table

* **Cumulative CRS cost** — total CRS spent to reach this state from L1
* **Total bonus/hour** — extra CRS/hour from all lessons combined (added to base 10K/hour)
* **Reward per 4h claim** — `4 × (10,000 + bonus_per_hour)` — what one full claim returns
* **2 claims/day** — total daily mining if you claim twice
* **Total USBI** — your entitlement (welcome grant + `floor(XP/10K)`)

## Validation

| Check                  |       Value | How                        |
| ---------------------- | ----------: | -------------------------- |
| Lesson cost multiplier |    1.217595 | `230M / (184,650 × 1,023)` |
| All-lessons-L10 cost   | 230,000,000 | Target = 230M CRS          |
| Max lesson bonus/hour  |     184,650 | `18,465 × 10`              |
| Max 4h claim           |     778,600 | `4 × (10,000 + 184,650)`   |

## Related

<CardGroup cols={2}>
  <Card title="XP Formula" icon="function" href="/tokenomics/xp-formula">
    1 CRS spent on lesson = 1 XP
  </Card>

  <Card title="USBI Formula" icon="function" href="/tokenomics/usbi-formula">
    XP → USBI entitlement
  </Card>

  <Card title="User Levels" icon="ranking-star" href="/tokenomics/user-levels">
    All-lessons-L10 puts you at L10
  </Card>

  <Card title="Bini App: Lessons" icon="graduation-cap" href="/bini-app/overview">
    The 30 lessons in the app
  </Card>
</CardGroup>