To his kids, Mr Kelvin Kao may not be the authority on rizz or sigma energy. Even so, he says there’s still a kind of love in making the attempt now and then. “Alright, I think I totally nailed that and aura farmed, am I right?” I said, beaming with pride at the back-cam wefie I’d just taken that had actually turned out well. My 16-year-old daughter Kirsten, bless her, fought off every instinct to roll her eyes – an effort I appreciated deeply – and replied with a straight face: “No, actually.