Earlier quoted context omitted.
I'd say putting mobile devices behind carrier-grade NAT goes a long way. > end to end connectivity is the internet. It was definitely the original idea of the internet, but I'd say it no longer is the reality. People want to access Google and Facebook. The vast majority of users don't need or want their device to be directly reachable from the internet but communicate through cloud services.
On the contrary, the statement seems correct. End to end connectivity is the Internet.... and by contrast, privately addressed networks are not on the Internet but must reach it via gateways. Reaching one another via centralized services rather than distributed federation is a problem, not a solution, in communications protocol design. See also: Everyone Hates Facebook.
> See also: Everyone Hates Facebook.
I don't know in what kind of bubble you are living but 1.3 billion people are on Facebook; whether it's cool to hate it is not germane to the topic at hand.