Most right-libertarians deny the permissibility of government redistribution, referring to the inviolability of private property rights. In a rare exception, Eric Mack offers a right-libertarian argument for luck sufficientarianism based on the catastrophe clause. In this view, people who find themselves in trouble through no fault of their own may violate someone else’s property rights in minor ways to save their own lives. But since a literal interpretation of this clause makes property rights too uncertain, Mack proposes a system of (...) redistribution that will protect people from dire circumstances. As it only applies to those who find themselves in poverty through no fault of their own, Mack’s argument rules out a basic income. However, one can combine Mack’s argument with basic income by arguing that responsibility-insensitive sufficientarianism is superior to luck sufficientarianism. First, luck sufficientarianism allows for the counterintuitive conclusion that people who have made mistakes in their lives do not deserve help from the rest of the community, even if they are engaged in some socially important activity. Second, luck sufficientarianism unduly interferes with people’s private lives to distinguish between deserving and undeserving recipients of social assistance, and inevitably excludes some deserving recipients from the pool of recipients. Third, a condition for holding people responsible for their choices is that they have agency. But maintaining agency requires the presence of some kind of material resources that would protect people from the fear and stress associated with poverty. Thus, responsibility-insensitive sufficientarianism is superior to luck sufficientarianism as an interpretation of the catastrophe clause. And within a libertarian framework, this requires introducing a basic income. First, a basic income technically guarantees everyone protection from extreme poverty and destitution. Second, a basic income guarantees everyone autonomy in how they manage their resources. Third, a basic income does not require means testing and is therefore responsibility-insensitive. Mack’s catastrophe clause therefore offers a right-libertarian argument for a basic income. (shrink)