There is a one-way vector in internet access.
At first, to do something like buy a book, we had to return to our desktop and boot it up.
Then, with smartphones, we, in almost real time, pull our phone out of our pockets and launch an app.
We are almost always on. The smartphone behavior opened up many more behaviors — some we didn’t even realize were an issue to being disrupted by networks, by reducing the friction from perception of problem to network access. Think taxi-hailing apps, which wouldn’t make sense in the desktop or laptop era.
The rule is that the less friction there is to internet access, more behaviors open to digital disruption. The ease and the unobtrusiveness of getting on the network corresponds to getting on for the smallest of real-world behavior.
This is why, that despite reaching what seems like a minimal level of friction with the smartphone, there is a push toward wearable devices, most notably Google Glass. Moving towards the era where humans were “always on” the network would open even more of the real world to digital disruption.