As Damien Walter noted recently on twitter, some time between 1995 and 2010, the human species began to develop functional telepathy. (Actually, the first sign of this became real on October 29th, 1969, but exponential growth from a small base takes a long time to become noticeable.) We now have over a billion human beings on the internet, and so many devices that the IPv4 address space is saturated: within the next decade we can expect multiple new satellite internet constellations (such as OneWeb and rivals) to bring pervasive internet access to the globe. Smartphones are pushing down into the sub-$50 space where they're affordable even by those living just at the global poverty threshold (and the decline in global poverty over the past decade is working away at the other end). It no longer looks implausible to suggest that almost everybody will be online by 2025.