Pippa Middleton

I remember the noise of the bells ringing at school as the effigy of Guy Fawkes we'd prepared earlier was carried out on a canvas stretcher, hoisted on to the huge bonfire and set alight. Then the revelry would begin. My school friends and I would all have sparklers we passed around, lighting one from another.

Every time you log in to Facebook, every time you click on your News Feed, every time you Like a photo, every time you send anything via Messenger, you add another data point to the galaxy they already have regarding you and your behavior.

I believe we are going to move into a situation where the more effective conferences will be smaller, more specialized, more focused, with occasional large gatherings to get the attention of the larger world.