"Slowly, over time, a page typeset in 1771 might start to get a whole new life, thanks to the growing authority we grant it through that elemental gesture of making a link." And this is why we need to empower the socialised book, not just through Google Books, but through the physical things themselves.

"What are the weird, seemingly unimportant data that can join up the areas we already know, and how do we know where to look for it? In order to be truly useful eyes on the street, we need to be able to take the scenic route, or shortcuts, or any other route that will be fun or illuminating for us and the people we speak to."

In the interview, Johnson explains how the Long Zoom holds together his recent work, and how this perspective emerged from his graduate-school training in literary theory and the Victorian period.