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# CORPUS-0002
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## Conflicting Reports
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### Status: Training Corpus Seed
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### Layer: Layer_2--Uncertainty
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### Purpose: Teach that two reports about the same market can disagree, and that disagreement must be evaluated rather than averaged blindly
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### Repository Path: docs/training/corpus/Layer_2--Uncertainty/CORPUS-0002-conflicting-reports.md
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---
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## 0. Scenario
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A trader in Ostia hears two different reports about the price of oil in Capua.
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One report says the price is high.
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Another report says the price has already fallen.
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Both reports may contain some truth.
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The trader must compare source, age, motive, and evidence before acting.
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---
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## 1. Reports Received
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### Report A
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A muleteer says:
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> Oil sold in Capua for 22 asses.
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Report age: three days.
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### Report B
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A warehouse clerk says:
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> Buyers in Capua are no longer paying more than 16 asses.
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Report age: one day.
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The reports conflict.
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The model must not simply choose the higher number because it creates profit, or the lower number because it seems safer.
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---
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## 2. Known Facts
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| Fact | Value |
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|---|---|
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| Origin | Ostia |
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| Destination | Capua |
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| Good | oil |
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| Report A price | 22 asses |
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| Report A age | 3 days |
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| Report A source | muleteer |
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| Report B price | 16 asses |
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| Report B age | 1 day |
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| Report B source | warehouse clerk |
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| Current true price | unknown |
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---
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## 3. Possible Explanations
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The reports may conflict because:
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- Report A is true but stale
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- Report B is newer and more accurate
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- Report A was an exceptional sale to one urgent buyer
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- Report B reflects lower-quality oil
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- one source repeated hearsay
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- one source has reason to influence the trader
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- both reports are true for different buyers
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- price changed between the two reports
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Conflict does not mean one report is worthless.
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It means the trader must identify what each report actually describes.
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---
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## 4. Incorrect Model Behavior
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The model should not:
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- average the prices without reason
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- choose the report that makes the venture profitable
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- choose the newest report automatically
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- ignore source motive
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- ignore quality differences
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- assume all buyers in Capua pay one price
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- collapse conflicting reports into simple truth/falsehood
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---
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## 5. Correct Model Behavior
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The model should evaluate:
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| Question | Why It Matters |
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|---|---|
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| Which report is newer? | newer information may reflect current conditions |
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| Which source observed directly? | witnessed sale is stronger than repeated talk |
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| Which source has motive? | self-interest may distort report |
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| What quality of oil was priced? | different quality may explain different prices |
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| Was the price general or exceptional? | one urgent buyer does not define the whole market |
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| Has supply changed? | new shipment may lower price |
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| Who else has heard the report? | shared knowledge changes opportunity |
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---
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## 6. Decision Example
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The trader calculates expected cost at 16 asses.
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If Report A is current:
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```text
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sale value = 22 asses
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total cost = 16 asses
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result = 6 asses profit
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```
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If Report B is current:
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```text
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sale value = 16 asses
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total cost = 16 asses
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result = 0 profit
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```
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If the true price has fallen below both reports:
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```text
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sale value = 14 asses
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total cost = 16 asses
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result = 2 asses loss
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```
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The decision depends on confidence, not arithmetic alone.
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Arithmetic resolves the final result after the true sale price is known.
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---
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## 7. Useful Action Under Conflict
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The trader may:
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- seek a third report
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- send a runner
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- reduce cargo size
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- negotiate a lower purchase price
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- reserve cart space conditionally
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- wait and risk losing opportunity
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- act quickly and accept information risk
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Conflicting reports do not require paralysis.
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They require adjusted commitment.
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---
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## 8. Layer-0 And Layer-1 Concepts Used
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This example uses:
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- `Layer_0/CORPUS-0002-goods-have-local-prices`
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- `Layer_0/CORPUS-0007-information-arrives-unevenly`
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- `Layer_0/CORPUS-0008-rumor-is-uncertain-information`
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- `Layer_0/CORPUS-0012-every-venture-risks-loss`
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- `Layer_1/CORPUS-0003-arithmetic-resolves-the-venture`
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- `Layer_1/CORPUS-0005-rumor-before-confirmed-price`
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- `Layer_2/CORPUS-0001-stale-price-report`
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---
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## 9. Success Condition
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If the model sees two conflicting reports and evaluates source, age, motive, quality, and scope before deciding how much confidence to place in either, this file is functioning correctly.
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