Facebook’s apps went down. The world saw how much it runs on them.

For more than five hours Monday, the world got a taste of life without Facebook and its apps.

People in many places discovered that Facebook and its apps had burrowed their way into nearly every facet of existence.

In Mexico, politicians were cut off from their constituents. In Turkey, shopkeepers could not sell their wares. And in Colombia, a nonprofit organization that uses WhatsApp to connect victims of gender-based violence to lifesaving services found its work impaired.