Looks like by mistake starter code is exactly the same as final one!
This happed in the previous chapter(s) too, but was not critical,
here - it is hard to follow the text in the book because output is different.
P.S. I believe, here is how main.swift file should look like at the beginning:
print("\n\n\n===== Schedulers =====\n") let bag = DisposeBag() let animal = BehaviorSubject(value: "[dog]") animal .dump() .dumpingSubscription() .disposed(by: bag)