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All real programs contain errors until proved otherwise…

“All real programs contain errors until proved otherwise which is impossible.” quote by Paul Dickson
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“All real programs contain errors until proved otherwise which is impossible.”

Paul Dickson

About This Quote

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

Software inevitably has bugs until proven correct, but absolute proof is unattainable.

In simple terms: Programs have errors until proven correct, which is impossible.

Key Takeaway

Accept imperfection, prioritize testing.

Themes

software development quality assurance uncertainty

Mood

cautious realistic

Type

technical pragmatic

When to use this quote

  • software release
  • code review
  • continuous integration

Key Concepts

formal verification bug detection risk management

Questions to Reflect On

  • How can you balance testing depth with time constraints?
  • What risks arise from assuming code is error‑free?
A Different Perspective

Proof of correctness is often impractical for complex systems.

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