https://phys.org/news/2018-11-cloud-edge-smart-tech.html

Currently almost all data we generate is sent to and processed in distant clouds. The cloud is a facility that provides virtually unlimited computer power and storage space over the internet. This mechanism is already becoming impractical, but by the time billions more devices are connected, delays due to congested networks will be significant. Harry and Pauline's frustrations will be the norm as apps communicate with distant clouds over a busy internet, becoming slower and less responsive.

After all, seconds matter. Harry will have a poor gaming experience if there is a 50 millisecond delay on his smartphone. Even a 10 millisecond lag between the movement of Pauline's head and the appearance of processed information on the smart glasses will cause motion sickness.