In Britain’s boardrooms, Brexit is already here. And the warning is stark | Aditya Chakrabortty

For Westminster, leaving Europe is months away: for business, it’s the present. And our prospects are already dwindlingOn the one hand, you have the self-inflating chaos at Westminster, the fever dreams of Jacob Rees-Mogg’s gang and the rehearsed rage of the Democratic Unionists. And on the other, you have the truth nailed by Philip K Dick. “Reality,” he wrote, “is that which, when you stop believing it, doesn’t go away.” So let’s remind ourselves