The wave of enthusiasm for digital technology had faded as we'd grown more and more worried about what smartphones and social media were doing to society and to us as individuals. Now that switchback ride between hopes for the technology and fear of it seemed to have taken us on another upward path, as the virus made us fall back in love with it. Read on for an intriguing excerpt from Rory Cellan-Jones's Always On: Hope And Fear In The Social Smartphone Era.