The structural possibility of escape is conditioned on the majority of the group remaining in their unfree condition, since not all can escape simultaneously.

Is it necessary to refer to internal constraints in order to make sense of the phenomena of oppression and structural injustice? Some might contest this view, or say that it is true only up to a point, for there are at least two reasons for thinking that the oppressed are lacking in negative liberty. First, while Berlin himself equated economic and social disadvantages with natural disabilities, claiming that neither represented constraints on negative liberty but only on personal abilities, man