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Difficulty: HardAssumptions in Causal Arguments

Historians analyzing ancient Mesopotamian city-states have noted that eras of significant architectural expansion consistently coincide with periods when a city-state's primary currency—a standardized grain measure—was widely circulated. Based on this correlation, the historians conclude that the implementation of a standardized currency directly stimulated the economic prosperity necessary to fund such massive architectural endeavors.

Which one of the following is an assumption on which the historians' argument depends?

  1. The initiation of massive architectural projects did not compel the creation of a standardized currency system to manage the complex logistics of compensating large workforces.Answer
  2. B
    Any ancient Mesopotamian city-state that successfully implemented a widely circulated grain standard experienced subsequent economic prosperity.
  3. C
    Neighboring regions that relied exclusively on barter systems failed to achieve comparable levels of architectural expansion during the same historical periods.
  4. D
    Periods that lacked a widely circulated currency never experienced any form of architectural expansion.
  5. E
    The widespread circulation of a grain standard is the only reliable historical indicator of an ancient city-state's economic prosperity.

Answer

The assumption that the initiation of massive architectural projects did not compel the creation of a standardized currency system.
The correct answer rules out the possibility of reverse causation. The argument observes a correlation between currency and architecture, and concludes that currency caused the architecture. For this conclusion to be valid, it must be true that the architectural projects didn't actually come first and necessitate the invention of the currency system. If we negate this option, it means the architecture caused the currency, which completely destroys the author's conclusion.

Step-by-Step Solution

1
Identify the core argument elements.
Premise: Architectural expansion correlates with standardized currency. Conclusion: Standardized currency caused the prosperity needed for the architecture.
Deconstructing the argument separates the observed facts (correlation) from the author's interpretation (causation).
2
Determine the type of gap in reasoning.
The author jumps from a correlation between two phenomena to a definitive causal relationship (A caused B).
Recognizing this gap dictates what kind of assumption is required: one that bridges the gap or defends it against alternatives.
3
Anticipate necessary assumptions for causal arguments.
A necessary assumption must rule out alternate causes, rule out reverse causation, or ensure the data is reliable. In this case, we must assume the architectural expansion didn't cause the currency standardization.
If reverse causation is true (B caused A), the author's conclusion (A caused B) is destroyed.
4
Apply the Negation Technique to the strongest candidate.
Negating the correct answer yields: 'The initiation of massive architectural projects DID compel the creation of a standardized currency system.'
If this negated statement is true, it means the architecture caused the currency, directly contradicting and destroying the author's conclusion. This confirms it is a necessary assumption.

Key Concept

Ruling Out Reverse Causation (Defender Assumption)
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Topics

Assumptions in Causal Arguments

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