Oh, how much work can be done by a single letter. The world would not have known, we would have remained wholly in the dark, blinkers blinkered, completely unaware that Kate, the Princess of Wales was at a theatre in London’s Islington at 2.30pm last week if it had not been for a single, solitary, consequential ‘C’.

And it’s because of that ‘C’ that we know that Kensington Palace seems to be trying out something totally new for the princess, which there is no guarantee will work. It began late last week when the Prince and Princess of Wales’ X account (formerly Twitter) threw up something highly unusual – a personal message from the 42-year-old mother of three that had nothing to do with her actual royal work. Nor was it about her health or about her kids’ birthdays or saluting some winning sports team or offering a bit of commiseration for some grim natural disaster.

Oh no. The Palace decided to update us about what the princess was getting up to in her downtime, with it reading simply: “Congratulations and thank you to [English National Ballet] and [Sadler’s Wells theatre] for the wonderfully powerful, moving and inspiring performance of Akram Khan’s Giselle. Creativity at its best! C” Congratulations and thank you to @ENBallet and @Sadlers_Wells for the wonderfully powerful, moving and inspiring performance of Akram Khan’s Giselle.

Creativity at its best! C pic.twitter.com/YbnMd7j9Pi What next, a tweet when Kate finally begins the final seas.