Passage Summary: We found a blueprint for columns at one Greek temple, so maybe the builders of the Parthenon used that same kind of blueprint to get their columns perfect.

Conclusion: The masons who built the Parthenon might have used a scale drawing similar to the one found at Didyma to ensure uniform column shapes.

Reasoning: A scale drawing with a grid was found at another temple (Didyma), which allowed for precise measurements of a column's width at various heights.

Analysis: This is an argument by analogy or historical inference. To strengthen it, we need to connect the Parthenon specifically to this method or show that this method was a standard practice of the time. Look for an answer that provides evidence that the Parthenon masons had access to such techniques or that the specific 'bulge' on the Parthenon matches the mathematical proportions found in the Didyma drawing.