 The third understanding of the Shift Thesis relates to a further distinction of how to understand the sufficiency conception. Versions of sufficientarianism differ in how they take into account ethical or justice-based reasons to benefit persons above the threshold of sufficiency. Strong sufficientarianism gives absolute, weak sufficientarianism gives some but not absolute priority to those who are below the threshold. In the intergenerational context weak sufficientiarianism seems more plausible than strong sufficientarianism (Meyer &amp; Stelzer 2018).