Ccf-Uk

Hi Luis. Thanks for answering questions! I have a few if you would be able to answer some of them:

1. What was the hardest challenge of developing Japanese for English speakers?

2. What advice would you give to people who want to make apps as successful/have as many users as Duolingo does?

3. What would be your top languages to be added to the incubator/be worked on for English speakers and be taught English?

4. Could we see languages with smaller speaking populations be added e.g. Finnish, Estonian, Icelandic, Khmer, Laos?

5. Could we see complex languages like Thai and Tibetan be added?

6. Is there a limit to how many languages Duolingo could have/support?

7. What's been the biggest/hardest challenge of working on Duolingo?

8. What's been the most enjoyable part of working on Duolingo?

9. What are your goals for the future of Duolingo in terms of languages being taught, and English being taught in other languages?

10. Did you see Duolingo having as many users as it does now when you started developing it?

Thanks for answering some, or even all my questions Luis!