The four most important tech companies aren’t even just tech companies anymore. They each have embedded themselves in our lives, hugely influencing us by playing to our basic human instincts: from the eternal human search for answers to our need for love.

That’s what Scott Galloway, professor of marketing at New York University, argues in his new book, The Four: The Hidden DNA of Amazon, Apple, Facebook, and Google.

He also says that the companies’ deep pockets and massive customer base are what allow the companies to start competing in different sectors and industries – like how Amazon is now producing original TV content, or how Facebook has more or less emerged as a news media platform. That has prompted scepticism and warnings from critics at places like the New York Times and Bloomberg.

Have a look at what Galloway reckons might be next for these companies – and for all of us.

Video by Sebastian Diaz. Interview by Bryan Lufkin. Additional production by Emily Okuda-Overhoff.

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