Which scenario best illustrates a distributed cognitive system?

• A. Collaborative problem-solving with multiple people and tools
• B. A single person solving a puzzle alone
• C. A robot operating in isolation
• D. A book used by someone

Answer: (A)

Distributed cognition happens when thinking isn’t confined to one mind but is spread across people, tools, and the environment. The scenario with several people collaborating and using a variety of tools shows this idea most clearly: problem-solving is shared among participants, and memory and reasoning are externalized through artifacts like tools, documents, and interfaces. The group’s coordination and the way tools shape and support thinking create a cognitive system that relies on interactions among people and artifacts, not just on an individual’s brain.

The other scenarios don’t capture that distributed aspect: solving a puzzle alone relies on one person’s internal reasoning; a robot operating in isolation functions as a single agent without human partners or shared tools to extend cognition; a book used by someone is an external resource for one person and doesn’t distribute cognitive labor across multiple actors and artifacts.