Making sense of a political moment when you're in the midst of it is difficult: even if you avoid commercial and personal conflicts, it can still be hard to see it and understand it.

Being editor-in-chief of the 'Guardian' and 'Observer' is an enormous privilege and responsibility, leading a first-class team of journalists revered around the world for outstanding reporting, independent thinking, incisive analysis, and digital innovation.

A newspaper is complete. It is finished, sure of itself, certain. By contrast, digital news is constantly updated, improved upon, changed, moved, developed - an ongoing conversation and collaboration. It is living, evolving, limitless, relentless.

Facebook has become the richest and most powerful publisher in history by replacing editors with algorithms - shattering the public square into millions of personalised news feeds, shifting entire societies away from the open terrain of genuine debate and argument while they make billions from our valued attention.