Before Facebook acquired WhatsApp, the company was for a lot of its users, not a "must-have" service.

But delete it from your life, and you won't be much worse off.

The exception might be the businesses which rely on Facebook to advertise their wares.

Post-WhatsApp though, Facebook is much closer to becoming what we might call a fundamental service.

If WhatsApp disappeared from the world, it would have a negative impact on people's lives.

In a lengthy blog on Wednesday, Facebook CEO Mark Zuckerberg leaned into the idea of turning Facebook into a fundamental business.

That is, a business that would become essential to people's daily lives because it is practically, and not just emotionally, useful.

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