You're right that was confusing.

For this line, where the same can be said for Java.

> Notice, that monad comprehension over Try monad is basically built into the Kotlin language.

...which is even worse, because now the compiler is saying "when you call this, you will get this" and you have NO way of knowing that the call actually returns any number of exceptions, as a matter of course, without reading EVERY line called by EVERY line in that method

vs just plainly indicating you will get Either<Error, Foo>

What are you talking about? You literally can with sealed classes.

I'm talking about the fact that every function call in Kotlin can return an exception (and it will always be undeclared, because Kotlin doesn't have checked exceptions)

this has nothing to do with sealed classes