There were two girls on the tube this afternoon.
17 or 18 years old, I would guess. Sisters, I would hazard. They were both fully occupied with their iPhones, their heads presumably full of whatever is going through a teenager's mind when riding the tube. The standard modern scene.
The only thing that made it non-standard was they were both wearing the hijab plus black coats, ankle-length black skirts and black shoes. Not a lock of hair or a inch of wrist was visible.
It made me wonder whether their mother or grandmother would have dressed in the same way, regardless of whether they grew up overseas or in the UK. And assuming they hadn't, what was the journey that had resulted in their dressing that way in 2015?
It also made me reflect that what nobody bears in mind when trying to predict the future is the amount of the past it's bound to contain.