there is some statement that the aim is to have build times in Kotlin as in Java. I personally won’t care if build times were longer as long as you don’t have to rebuild the whole thing once you changed some method in the IDE. But it makes me think whether build times scale with the size of the code base, because the experience with Scala was not fun in this way and it was a lot of time to get into this feature-loaded language.
Do you have something like test cases with some intricate code where you know you are on the safe side as what build time scalability is concerned if those intricate/artificial/contrived/etc. test cases don’t make the compiler run wild? That would then make me feel quite comfortable ;-).