> For the complete documentation index, see [llms.txt](https://earn.blink.sv/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://earn.blink.sv/chapter-102-what-is-money/102.02-lesson-coincidence-of-wants.md). # 102.2 Lesson - coincidenceOfWants **Screen:** coincidenceOfWants **Headline:** Money solves the “coincidence of wants”... What is that?? **Reward:** 2 **Text:** Centuries ago, before people had money, they would barter -- or haggle over how to trade one unique item, in exchange for another item or service. Let’s say you wanted to have a meal at the local restaurant, and offered the owner a broom. The owner might say “no” -- but I will accept three hats instead, if you happen to have them. You can imagine how difficult and inefficient a “barter economy” would be! By contrast, with money, you can simply present a $20 bill. And you know that the restaurant owner will readily accept it. \================================================================= ## QUIZ **Question:** Which coincidence does money solve? **Answer:** Coincidence of wants **Feedback:** That is right. Money allows you to easily purchase something, without haggling about the form of payment **Correct:** true **Answer:** Coincidence of day and night **Feedback:** No silly, you know that is not the answer. **Correct:** false **Answer:** Coincidence of the moon blocking the sun **Feedback:** Not quite. We call that a solar eclipse 🌚 **Correct:** false