The latest trend among the scions of Generation Z – those born between 1997 and 2012 – is posting ‘throwback videos’ on TikTok. Talk about a snake eating its tail. Having reached the ripe old age of, say, 11, Generation Z is digging through their archives to offer a wan critique of that embarrassing haircut they sported in the dim and distant past of, say, 18 months ago, or reminiscing with friends about ‘Snapchat filters we all used to use’.