My guess is RxJava has that issue in general, and ...

# language-proposals

[thomasnield]

My guess is RxJava has that issue in general, and RxKotlin is constrained being wrapped around it and will create instances for everything (Observables, Subscribers, etc). Sometimes I wonder how much more efficient RxKotlin would be if someone re-built the reactive implementation from scratch using pure Kotlin. You guys should recruit David Karnok, I'm sure he's not busy in the slightest : )