Back in the late eighties when the amount of alcohol in beer was still one of the factors whether to purchase a given brand, I noted that the further up the scale you go, the worse the taste is. I still harbor a serious aversion to Golden Pride which a friend of mine brought home half a suitcase from England.
Those days of Elefant and others in the ~11% scale are long gone.
As the Time magazine article explains, the competition between BrewDog and Schorschbräu has upped the ante above 40%. While likes of Tactical Nuclear Penguin and Sink the Bismarck! would be interesting to taste, the cost would be prohibitive indeed.