a confounding issue, which is widely known in the hepatology community, is the liver is already breaking down earlier and earlier from metabolic disease. More and more young people are developing fatty liver from diet and this accelerates in the presence of alcohol. Sure, some people burn their livers super fast….. but have a heavy drinker with no confounding metabolic disease vs a heavy drinker with fatty liver from poor diet and your gonna see the one with fatty liver from diet have issues decades earlier….