Tell HN: I think Kotlin is great

It's better to link to the page of the language, or to a good tutorial.

My first question is: What makes this language different from all the other languages? (Something more specific than great.)

I'll copy partially a comment by Matthew Butterick in the Racket mailing list. https://groups.google.com/forum/#!msg/racket-users/oS_D2OHuF...

It can provide some ideas:

>> So, what is the best way [to promote Racket]?

> Here's one good way to promote the language:

> 1) Make something impressive with Racket.

> 2) When someone asks "how did you make that?" give Racket all the credit.

> Don't cut corners in step (1).

Do you know an interesting project made in Kotlin?