Isn’t it wonderful stuff? It was invented as a by-product of the early space missions, supposedly, along with non-stick frying pans and computers that sometimes work … And Principia is without doubt going to yield comparable benefits, in healthcare, metallurgy, nutrition and other areas that will probably slip in through the side door unnoticed and unpredicted, just like Velcro did back then.
And it’s also yielded a rather splendid metaphor. Each of the two sides of a Velcro connection exists in its own right – they’re different and self-contained. Yet they are incomplete until they join together and seal the gap. A bit like two humans. Z and me, in this case.