Nullability in Kotlin and Java

Every time I cross the boundary between Kotlin and Java, I know that what I'm going to get is nullable. It took me a while to get clear on that. Because it's all how it's all about the non-nullability. And then within the Kotlin libraries, they will themselves return a null. So you're going, wait, well, I thought we went to a lot of trouble. Listen, nullability is what we should call that. Yeah.