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Postulate 1. All chance systems of causes are not alike in…

“Postulate 1. All chance systems of causes are not alike in the sense that they enable us to predict the future in terms of the past.” quote by Walter A. Shewhart
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“Postulate 1. All chance systems of causes are not alike in the sense that they enable us to predict the future in terms of the past.”

Walter A. Shewhart

About This Quote

This interpretation was drafted with AI assistance. It is one reading of the quote, not the author's own explanation.

Not all random cause systems are equivalent; some allow future predictions based on past data, while others do not.

In simple terms: Some random systems enable prediction, others don’t.

Key Takeaway

Identify which systems are predictive.

Themes

statistics prediction uncertainty systems control

Mood

analytical pragmatic

Type

scientific technical

When to use this quote

  • manufacturing
  • financial modeling
  • weather forecasting
  • risk assessment

Key Concepts

probability theory randomness forecasting

Questions to Reflect On

  • Which types of randomness are useful for forecasting?
  • How can we test a system’s predictability?
A Different Perspective

Predictive power varies with system structure.

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