3. “Someone Needs to Save the World from Silicon Valley”

If the big social-media companies are unable or unwilling to make major changes from within, it may be up to outsiders to create better, healthier digital communities. Whether it’s smaller platforms for like-minded people, a publicly owned social network, self-policing by user groups, or activist campaigns to pressure Twitter and Facebook to improve, Sudhir explores what’s next for social media — and what makes societies function or fail.