Kant’s line of thought suggests that there is an equivalence between ‘I can imagine seeing X’ and ‘I can imagine myself seeing X’. But because this is a purely formal equivalence there is no substantive self, no soul of Me, involved in either imagining. Hence, it is wrong to take such imaginings as supporting any ‘real distinction’ between you as subject, as self or soul, and the animal that in fact you are. So the imaginings of X do not support the possibility that your biography might outrun the biography of that animal, just because X is something that the animal will not see.
