also, any reason an arg of type `Runnable` can be ...

# announcements

[Andrew Gazelka]

also, any reason an arg of type Runnable can be called with () -> Unit but when the type is Runnable...?, () -> Unit cannot be called?

[karelpeeters]

You need to give an example for that, but could be https://kotlinlang.org/docs/reference/java-interop.html#sam-conversions?