As of 29 January 2017, the population of China estimated at 1.38 billion; India at 1.28 billion and the United States of America at 326 million, while world whole population estimated at 7.368 billion people, according to Cencus.gov.
Almost half of total world population have the access to the internet as the record shows that there are around 3.5 billion internet users in the world. And with the estimation of 1.8 billion active Facebook users (Internet Live Stats, 2017), Facebook, the most popular social media platform could be the most populous country in the world.
This comparison is enough to show that social media such as Facebook can become so influential and powerful in terms of communication access. The number of users will only keep rising and show its importance as must-have platforms in today and future communication.