Personally I’m interested in the net gain, so I think both should be considered when evaluating some proposal. In this particular case, my impression is that the only supposed benefit is information hiding. Given the downsides I’ve listed, I think we lose much more than we get. In fact, I’m currently not convinced that there’s any benefit here. Information hiding can be done without processes too, by declaring the type as opaque and using dialyzer to verify it.
Note that my comments are related only to this single aspect of your exploration. The components experiment seems to pack a lot more than just separating concerns with processes. In fact, based on what I’ve read so far, I’m not really sure how important the “design with processes” approach is to the entire components thing.
In any case, I wish you best of luck with your exploration. My comments might be somewhat negative, but I’m actually a fan of challenging old dogmas, so I’m looking forward to see how your experiment will evolve!
