Samuel: Because communication via computer is usually conducted privately and anonymously between people who would otherwise interact in person, it contributes to the dissolution, not the creation, of lasting communal bonds.
Samuel's Claims
1. Communication via computer is usually private and anonymous, between people who would otherwise interact in person
2. Communication via computer contributes to the dissolution, not the creation of lasting communal bonds.
3. Due to the word "Because" connecting Sam's two claims, we also know Sam assumes a causal relationship between the two claims: when two people who would otherwise meet in person meet instead privately and anonymously on computer, that helps to dissolve lasting communal bonds.
Tova's Responses to Those Claims
1. She doesn't speak about which form computer communication usually takes, but she does seem to push back against Samuel's assumption that people talking via computer would be interacting in person otherwise. Tova suggests,
2. Tova does speak to its net effect on helping / hurting social bonds. She says it usually replaces "asocial or even antisocial behavior". So she thinks that computer communication is at worst harmless, but probably a net positive. She would disagree that computer communication is helping to dissolve communal bonds.
Goal
There seemed to be two potential disagreements:
Claim 1-- are people talking on the computer sacrificing what would otherwise be a more intimate in-person meetup?
Claim 2 -- is computer communication really dissolving communal bonds?