AI will be sentient when
Plato: It has a soul
Aristotle: It has reason
Descartes: It doubts itself
Kant: It obeys the moral law
Kierkegaard: It trembles in dread
Freud: It has an unconscious
Heidegger: It fears death
Merleau-Ponty: It is embodied
Levinas: It is before the Other