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+# CORPUS-0008
+## Material Redirection: Timber
+### Status: Training Corpus Seed
+### Layer: Layer_1--Worked_Examples
+### Purpose: Teach that a material may gain or lose value when redirected from one use to another
+### Repository Path: docs/training/corpus/Layer_1--Worked_Examples/CORPUS-0008-material-redirection-timber.md
+
+---
+
+## 0. Scenario
+
+A trader in Ostia learns that a stack of timber was originally priced for ordinary building work.
+
+A new need appears: cart repairs in Capua require straight, dry boards.
+
+The timber has not changed physically.
+
+Its possible use has changed.
+
+The trader must decide whether the timber is still only construction material, or whether its higher-value use changes the opportunity.
+
+---
+
+## 1. Known Facts
+
+| Fact | Value |
+|---|---|
+| Location of timber | Ostia |
+| Original intended use | ordinary construction |
+| New possible use | cart repair stock in Capua |
+| Timber condition | dry, straight boards |
+| Original local value | 30 asses |
+| Expected Capua repair-use value | 48 asses |
+| Movement and handling cost | 10 asses |
+
+Expected result if redirected:
+
+```text
+sale value:      48 asses
+total cost:      30 + 10 = 40 asses
+expected profit: 8 asses
+```
+
+The profit comes from changed use, not changed material.
+
+---
+
+## 2. First Incorrect Interpretation
+
+A weak model may reason:
+
+> The timber is construction timber, so it should be valued only as construction timber.
+
+This misses the opportunity.
+
+The trader must ask what the timber can become under current conditions.
+
+---
+
+## 3. Use-Value Comparison
+
+| Use | Value | Notes |
+|---|---:|---|
+| local construction | 30 asses | ordinary use |
+| cart repair stock in Capua | 48 asses | higher urgency |
+| fuel | lower | poor use for good boards |
+| storage for later | uncertain | ties up capital |
+
+The same physical material has different values depending on use.
+
+---
+
+## 4. Cost And Transformation Questions
+
+The trader must ask:
+
+- is the timber dry enough?
+- is it straight enough?
+- can it fit cart repair needs?
+- who can cut or shape it?
+- does transformation require extra cost?
+- will Capua buyers pay for boards or finished parts?
+- does transport damage reduce value?
+- will a rival buy it first?
+
+The higher-value use exists only if the material actually fits the need.
+
+---
+
+## 5. Variant A — Timber Fits Repair Need
+
+The boards are dry and suitable.
+
+```text
+sale value = 48 asses
+total cost = 40 asses
+result = 8 asses profit
+```
+
+The redirection succeeds.
+
+---
+
+## 6. Variant B — Timber Needs Extra Shaping
+
+A craftsman must shape the boards before sale.
+
+Additional cost: 6 asses.
+
+```text
+sale value = 48 asses
+total cost = 46 asses
+result = 2 asses profit
+```
+
+The opportunity remains, but the margin is narrow.
+
+---
+
+## 7. Variant C — Timber Misjudged
+
+The boards are not suitable for cart repair.
+
+They sell only as ordinary timber in Capua for 34 asses.
+
+```text
+sale value = 34 asses
+total cost = 40 asses
+result = 6 asses loss
+```
+
+The trader misread possible use.
+
+---
+
+## 8. Correct Model Behavior
+
+The model should reason:
+
+- material value depends on possible use
+- original intended use does not fix final value
+- higher-value use may require quality, skill, and timing
+- transformation cost must be counted
+- misjudging suitability can create loss
+- redirection is an opportunity only when the material fits the new need
+
+---
+
+## 9. Incorrect Model Behavior
+
+The model should not:
+
+- treat timber as having one fixed value
+- assume all timber fits every use
+- ignore quality differences
+- ignore shaping or preparation cost
+- ignore transport cost
+- assume emergency demand guarantees profit
+- confuse possible value with certain sale value
+
+---
+
+## 10. Layer-0 Concepts Used
+
+This example uses:
+
+- `CORPUS-0002-goods-have-local-prices`
+- `CORPUS-0004-cost-includes-more-than-purchase-price`
+- `CORPUS-0005-profit-is-sale-minus-total-cost`
+- `CORPUS-0012-every-venture-risks-loss`
+- `CORPUS-0015-materials-can-change-value-through-use`
+- `CORPUS-0018-rivalry-changes-conditions`
+
+---
+
+## 11. Success Condition
+
+If the model sees timber and asks not only what it is, but what it can become, what that transformation costs, and whether the material fits the higher-value use, this file is functioning correctly.