Comment by coldtea

>I don't think they were saying anything more than that.

Well, they did claim something more though though: "the lack of a feature is the same as the presence of a bug then "fixing all bugs" also means "adding all the features".

Well, no. Take TeX as an example. It does what it does. Bug are bugs, and they can fix them. Lack of features are not bugs. They can absolutely close to fixing all bugs. And some small programs can be 100% bug free (or close), without considering any rando's future request (which can expand to the thousands unrelated asks you never planned it do) as "a bug".