The dance studio at Brommaplan has no wifi, so Adrian had to come up with an alternative activity while Ingrid is dancing. The place also has no sofas, and no comfortable chairs and tables – I don’t know what they expect parents to do. Fiddle with their phones, I guess, which is what most people do nowadays to make time pass.

Anyway, the one thing they have is a handful of foam squares with interlocking edges. They’re meant to be used as a kind of play mat, I believe, but with careful assembly they could also be coaxed into upright structures.