The fall and return of the cat picture still amuses me. In the early days of Web adoption when people would put up a personal home page just for the thrill of having one, stereotypically the only bits of content they would be able to come up with for it were a list of favourite bands and one or more scanned-in pictures of their cat. So for years and years afterwards cat pictures were a synechdote, a punchline for jokes about the naïvety of the early Web. Then phone cameras and low-effort social media became big, and ...