Rather than dramatically breaking into the mainstream, virtual reality has slowly acquiesced into the collective consciousness. The arena of sport, however, provides a unique opportunity for the tech, potentially transforming these perennial pastimes for fans, players and sponsors alike.

Boxing has already shaken up boutique fitness in the US, and it’s now arrived in London with KOBOX, which offers a non-contact version of the sport where people learn to throw punches and fight in a ring. Why are women swapping a slog on the treadmill for something a lot more powerful?

The streets are flooded with people wearing trainers and yoga pants, but how many of them actually work out? Reebok is picking the protein lovers from the pretenders by positioning itself as a brand that caters to hardcore health enthusiasts. But will fitness freaks be on board?

A video shot surreptitiously on a smartphone documents an altercation between a bus driver and an irate young woman. Another offers a window into a high school cafeteria, where dozens of girls rip at each other’s hair, screaming like banshees. What is it that makes violence go viral?