 However, the influence of another historical tradition, which like Kant highlights the connection between rationality and autonomy and moral standing, suggests that the capacity to feel might not be the whole story. Sytsma and Machery (2012) provided evidence for the two-source hypothesis: both rationality and the capacity to feel underwrite the ascription of moral standing by lay people. Others have since identified further factors that influence the ascription of moral standing (e.g., Piazza, Landy &amp; Goodwin 2014), and they have examined how information about the grounds of moral standing can be used by people in a self-serving manner (Piazza &amp; Loughnan 2016). Recent work connects moral standing ascription to, on the one hand, vegetarianism and the treatment of animals (e.g., Piazza &amp; Loughnan 2016) and, on the other, the psychological processes underlying dehumanization (Machery 2021).