This is context describing how many people feel. The author’s conclusion is a comment about whether these people can satisfy their longing by learning about other cultures through the Internet.

This is context describing what many people often do. The author’s conclusion is about whether people can satisfy their longing for emotional connection by learning about other cultures through the Internet.

This is a twisted version of the premise. The premise is that the Internet is primarily used for acquiring information. But it doesn’t state that the secondary reason people use the Internet is to develop feelings of interconnectedness.

This is a paraphrase of the conclusion that fills in the referential language. Learning about other cultures probably will not satisfy the longing of people for emotional connection to a global human community.

The author’s not trying to prove what people who want emotional connection tend to do. He’s trying to prove that what they often do will probably not achieve their goal of creating an emotional connection.