"Another aspect of contemporary screen-based culture is the constant psychic conflict often referred to as the "Attention Economy". In just trying to watch one youtube video, a typical user is confronted with dozens of other appeals to focus somewhere else: comments, ratings, related videos, advertisements, video responses, etc. Because screen-based interaction is premised on temporal immediacy, we are, as users forced into a state of hyper-attention where we must constantly fight against the, largely commercial, attempts to make us look at something else. When we remove the screen (and by necessity, simplify the interface) we introduce a new form of temporality, where the speed of interaction might more accurately reflect our ability to percieve and understand information."
I think this is the important part of the whole idea. On the other hand, and, in my opinion, you can achieve a similar experience as:
1. use a laptop and/or desktop
2. disable your notification system on your desktop
3. browse the web with an extremely simple browser, like w3m
4. one display
5. full-screen mode
6. don't scroll gradually; read from top to bottom and use pgup/pgdown
I found this the best way to focus on content and work, however, most workplaces won't tolerate not responding to instant messages and notifications.