Information itself can be quantified

What will you explore?

Shannon, 1948

Information itself can be quantified.

How does it work?

Watch a 90-second cinematic explanation, or explore a story that pauses so you can change its central mechanism. Inspect the source evidence, compare outcomes and resume the narration. This free Lesson Worlds adaptation needs no account or download; younger learners may want help from a parent or teacher.

Inside the cinematic story

1. One flipped bit. A different message.

   Follow the message through the channel.

2. The channel does not know the meaning.

   Source → channel → destination

3. Give the receiver another clue.

   111 → 011 → majority 1

   Take control: How many of the three bits should flip? No flips · One flip · Two flips

4. Every code has limits.

   Two flips defeat this simple code.

5. A boundary called capacity.

   Rate, uncertainty and reliable communication.

6. Noise became a design problem.

   Test the code. Find its failure.

Discuss the evidence

Before starting, explain what you think this claim means: Information itself can be quantified. After exploring, choose one stage above and describe what its model helps you see. Separate what you observed in the adaptation from what the original researchers measured.

Read the original publication for its methods, evidence and limitations. Ask which part of the explanation the interactive model leaves out, and what additional evidence you would need to test the claim yourself.

The bit sequence and repetition code are original teaching examples, not experimental data or a capacity-achieving code. Reliable communication concerns error probability under stated channel and coding assumptions; finite codes can still fail.

Original research

A Mathematical Theory of Communication

Claude E. Shannon · Bell System Technical Journal (July & October 1948) · 1948

Educational adaptation by Lesson Worlds. Not affiliated with the author, Nokia Bell Labs. The original publication may have its own access terms.