OK, just a quick note here, to say that this video is really well done, and I like the way it shows how a number of different developments in different kinds of technologies, in different nations, and at different times, all came together to form the internet. Really impressive work!
Of course, taking a big picture perspective, we might say that the bias of electric technologies has been towards greater convergence of technologies and services--this is a point McLuhan made decades ago, and Mumford before him. It's not that the internet was inevitable, there are many different ways that things could have worked out. The evolution has been dynamic and fluid, and chaotic, like a stream, but like a stream, it has followed a certain, unmistakable direction.