To begin with, there is the problem of exactly whom the basic income will apply to; in other words, what is the subject for claims to social justice in the world of basic income. In most formulations, from Thomas Paine forward, a basic income is conceived of as having a condition of citizenship attached to it. Though this would be a relatively straightforward in a world of limited interstate migration, the reality is that individuals and families currently exist in a wide variety of positionalities vis-à-vis the state in which they physically inhabit. In addition to citizens, there are permanent residents, refugees, students on visas, temporary foreign workers and more. The danger with a citizenship-conditional basic income, as it is unlikely that every country would implement such a policy at the same time, and certainly not at the same monetary level, is that it would further deepen the divide between citizen and non-citizen inhabitants of particular countries.