Some rides are so fast, so wild, so vertiginous that you never want to get off. And when they do end, they’re all the more dizzying once you’ve disembarked. “Going home was so weird,” says Mike Kerr, only now beginning to comprehend the incredible, inconceivable two-year ascent of Royal Blood, the Brighton bass-and-drums duo who shot to the stars between 2014 and ‘15. “I got so fidgety in the same place, really anxious. You’re hanging out with your mates in the pub and it’s really good to see them but you’re staring off like you just had the weirdest dream ever.” The ultimate rock dream, in fact.