Social networks train us to focus on images and emotions, sapping the quest for knowledge.

Social networks, though, have since colonized the web for television’s values. From Facebook to Instagram, the medium refocuses our attention on videos and images, rewarding emotional appeals—‘like’ buttons—over rational ones. Instead of a quest for knowledge, it engages us in an endless zest for instant approval from an audience, for which we are constantly but unconsciouly performing.

Source: How Social Media Endangers Knowledge | WIRED