1. Objects all the way down
2. It's hard to break Kotlin
3. Kotlin is extremelty classy
5. Lists and sets and maps, oh my!
6. The future (in Kotlin) is generic
7. Flying through control structures
9. Enums and sealed, more specialty classes
10. Functions and functions and functions
11. Speaking idiomatic Kotlin
12. Inheritance, one more time, with feeling
13. Kotlin : the next step
