Part 1 of 5 · freeIntroduction
Since the industrial revolution, our economy has run in one direction: we extract resources, we make objects, then we throw them away. The model assumes that resources are infinite. They are not.
The circular economy offers another logic, borrowed from nature, where nothing is truly lost. It aims to keep the value of products and materials in circulation as long as possible instead of turning them into waste.
The rest is in the Sophia app.The remaining parts, the open-book quiz and the full glossary. Free to start; Premium unlocks everything.
- 2The linear model hits its limits
- 3Repair before recycling
- 4Why it is still hard today
- 5Toward a society of resources
Open-book quiz8 questions whose answers are in the text.
Glossary14 terms explained in a tap.
30 languagesThe same course, from French to Japanese.





