This is a short one that is mainly compose from 3 images that tell the story of “The next billions users” and what we should focus on.
From which countries new users will come online?
If you wish to see more about this data. Check this Source.
What to focus on?
When you develop your fast and resilient web app, you should focus on 4 aspects:
The client must be able to render the application regardless of their connectivity. If the user can’t load the app, nothing else is important. Offline is a normal mode of operation for resilient applications. You can do it today with the Service Worker API. It’s not only the offline feature, but the ability to control your users’ experience and improve it (e.g. push notifications).
The Gap between devices
This gap is going and getting wider. You should keep in mind both extremes.
More on devices fragmentation and their features in this source. It will give you a nice way to slice and dice this data. You can learn more on “Building for billions on the web” with this great talk by Tal Oppenheimer.