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Common Quote by Donald Knuth

“These machines have no common sense; they have not yet learned to "think," and they do exactly as they are told, no more and no less. This fact is the hardest concept to grasp when one first tries to use a computer.” quote by Donald Knuth
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“These machines have no common sense; they have not yet learned to "think," and they do exactly as they are told, no more and no less. This fact is the hardest concept to grasp when one first tries to use a computer.”

Donald Knuth

About This Quote

Source Interview: Computer Science Perspectives, 1970s

Computers lack human common sense and only follow explicit instructions.

In simple terms: Computers follow exact commands.

Key Takeaway

Design systems with clear, explicit rules.

Themes

technology logic limitations

Mood

cautious analytical

Type

technical philosophical

When to use this quote

  • software development
  • education
  • AI deployment
  • everyday tech

Key Concepts

AI automation human‑computer interaction

Questions to Reflect On

  • How can we embed judgment in algorithms?
  • When is human oversight essential?
A Different Perspective

Over‑reliance on computers can ignore nuance.

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