Why social media has changed the world — and how to fix it

Photo caption: MIT professor Sinan Aral’s new book, “The Hype Machine,” examines the dynamics of social media and suggests new ways to prevent online information from exacerbating falsehood, polarization, and social tension. Article by Peter Dizikes | MIT News Office.

MIT Professor Sinan Aral’s new book, “The Hype Machine,” explores the perils and promise of social media in a time of discord.

Are you on social media a lot? When is the last time you checked Twitter, Facebook, or Instagram? Last night? Before breakfast? Five minutes ago?

If so, you are not alone — which is the point, of course. Humans are highly social creatures. Our brains have become wired to process social information, and we usually feel better when we are connected. Social media taps into this tendency. […]

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