World Rugby’s zero tolerance on head injuries is not just a pipe dream

Significant progress in tackling concussion has been made in the last five years giving hope that Gladwell’s grim vision of the future may be avoidableWhenever a fresh study on the dangers of concussion in sport hits the headlines it reminds me of the ominous prophecy from Malcolm Gladwell: that playing American football will one day become akin to joining the army. “We will disclose the risks and dare people to play,” he warned in 2013. “That’s what the army does.