Section 07

Why It Mattered

Foundation of Artificial Intelligence Computing Machinery and Intelligence 1950

Why It Mattered

What changed after this paper

Before 1950, there was no field of artificial intelligence. There was no research agenda, no community of scientists working toward machine intelligence, no funding, no journals, no conferences.

This paper did not create AI overnight. But it did something essential: it made AI thinkable as a scientific project.

By replacing “can machines think?” with “can machines pass the imitation game?”, Turing gave the field a target. A goal. A definition of success that researchers could aim at, even if they were not sure how to reach it.


What became possible

1956 — The Dartmouth Conference

Six years after this paper, John McCarthy, Marvin Minsky, and others organised a summer workshop at Dartmouth College in New Hampshire, USA. They named their new field “artificial intelligence.” Their goal was exactly what Turing had described: building machines that could exhibit intelligent behaviour. This conference is considered the official birth of AI as a discipline.

1966 — ELIZA

Joseph Weizenbaum at MIT built ELIZA, the first chatbot designed to simulate conversation. It used simple pattern matching — the same technique we coded in Section 6. Weizenbaum was disturbed to find that people formed genuine emotional attachments to ELIZA, even knowing it was a program. They told it their secrets. They preferred talking to it over talking to humans. He wrote an entire book (Computer Power and Human Reason, 1976) expressing his alarm at how easily humans were fooled. Turing had predicted this would happen.

1997 — Deep Blue beats Kasparov

IBM’s Deep Blue defeated world chess champion Garry Kasparov. Many people had argued that chess — requiring creativity, strategy, and forward thinking — was the ultimate test of intelligence. When a machine passed that test, the goalposts moved. Suddenly chess was just computation. This is now called the “AI effect”: as soon as a machine can do something, we redefine that thing as not requiring real intelligence. Turing discussed this pattern in his paper — he called it the “heads in the sand” objection.

2011 — Watson wins Jeopardy!

IBM’s Watson defeated the two best human Jeopardy! players in history. Jeopardy! requires understanding puns, cultural references, indirect clues, and natural language ambiguity. Watson did all of this. Still, many argued it was “just” information retrieval, not real intelligence.

2022–2024 — ChatGPT, Claude, Gemini

These are direct descendants of Turing’s question. ChatGPT, released in November 2022, reached 100 million users in two months — faster than any product in history. Millions of people described feeling that they were genuinely talking to something that understood them. In 2023, Google engineer Blake Lemoine was fired after claiming that LaMDA (another large language model) was sentient.

Are these systems “thinking”? The debate Turing started in 1950 is now front-page news.


Products that exist because of this paper

Every AI assistant you have ever interacted with traces its intellectual lineage to Turing 1950:

  • Google Assistant, Siri, Alexa — voice-based AI assistants that try to understand and respond to natural language
  • ChatGPT — the most widely used AI chatbot in history
  • Claude (which you might be using right now) — Anthropic’s AI assistant, designed to be helpful, harmless, and honest
  • GitHub Copilot — an AI that writes code alongside you
  • Grammarly — AI that understands your writing and suggests improvements

None of these would have been conceivable as engineering targets without Turing’s shift from philosophy to behaviour.


Why a student in small-town India should care about this paper

This paper was written 75 years ago by a mathematician in England. Why should you, sitting somewhere in Rajasthan or Bihar or Odisha, care about it?

Because the AI systems being built right now — the ones that will reshape every job, every industry, every government, every classroom in your lifetime — are the children of this question. Understanding where the question came from, and why it was asked the way it was, is the first step toward understanding the technology itself.

You are not late to this conversation. You are exactly on time.


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