Since its birth in the labs of ARPANET half a century back, Internet has risen to create a truly global communication system connecting people across the world. The last two decades has seen users rising from forty million to around 3 billion, with one billion added in the last four-five years itself. This exponential growth is fueled primarily by three factors: a robust and resilient global network, growth of cheaper and powerful computing driven by the Kurzweil curve and an ecosystem of relevant services created by new companies powered by network effects.
Over 4 billion people still remain unconnected to the Internet. Users today are predominantly urban since vast majority of investments by telecom industry went into solving the problem of capacity and complexity while not investing enough on last mile access.