The first Potter book was published in 1997, the same year Siemens launched the then revolutionary S10, the first mobile phone with a full colour screen, that could display up to six lines of information in four different colours (white, red, blue and green). The only time kids back then ever saw video on a phone was while watching re-runs of Gerry Anderson’s Thunderbirds.

Amazon was three years old. Online shopping was a novelty. TikTok? Do be serious. Social media only appeared in 1997, for adults (Six Degrees dot com, anyone?) and the mighty My Space did not get to one million users until 2004, the same year Facebook launched.