The way he is talking about interaction is not people-centric, it is person-centric. If you are only ever communicating with one person at a time, then yes, ope

The way he is talking about interaction is not people-centric, it is person-centric. If you are only ever communicating with one person at a time, then yes, opening up an individual person's contact details is probably the way to go, and for one-on-one text messages or phone calls this is how I communicate. If I'm dealing with more than one person at a time, which is most of the time, I open up the application, whether it is facebook, twitter, email etc, and it allows me to view and communicate with multiple people in the medium that I choose.