Nigel Farage, the man who helped deliver Brexit, the greatest act of economic self-harm in living memory, has joined forces with Kwasi Kwarteng, the former Tory chancellor responsible for the disastrous mini-budget of 2022, to offer us, of all things – financial advice. It’s a proposition so absurd that it makes trusting tobacco company Philip Morris to link smoking to cancer seem rational by comparison. Talking of toxic Americans, it is, of course, from Donald Trump’s venal presidency that Farage has lifted his latest moneymaking scheme: plugging cryptocurrency investments.