Listen to this on Duolingo (about 1 hour and 10 minutes long) and answer these questions in about 250 words.
Answer the following questions:
- Identify the problems Luis von Ahn was trying to solve?
- List the things that motived Luis von Ahn over his entrepreneurial career? Why?
- What keeps users motivated to continue with the Duolingo app? Why?
- How would you have solved the problem for the newspaper archives in 2007?