Answer:
In a way, it's more of a distraction than a destruction.
If a teacher is presenting a lesson or conducting a discussion and many students are not participating because they are looking at their cellphone, it is likely that the teacher will have to stop the lesson to address the issue, and that distracts the students who were following along.
Or a family could be having conversations about the events of the day and what's going on in their lives but gets distracted by texts from outside, or twitter nonsense, games, etc.
Explanation:
So the discussion tends to be destroyed; the continuity is disrupted. Information and insights aren't shared. And the group, whether it's a class, a family, or a group of friends, suffers the loss of understanding, sharing and/or bonding because some kids' cellphones were more important.