 A final preliminary point is that the fourth condition requires that the choice to die not only be uncoerced and competent but that it be enduring. The choice is one that will require time for reflection, and, almost certainly, discussion with others, so should not be settled in a moment. Nonetheless, as with other decisions affecting matters of importance, adults are presumed to choose voluntarily and to be competent unless the presence of defeating considerations can be established. (See the entry on  decision-making capacity.)  The burden of proof of establishing lack of voluntariness, or lack of competence, is on those who refuse to accept an adult person’s choice. There is no need to deny that this burden can sometimes be met (e.g., by pointing to the person’s being in a state of clinical depression). The claim is only that the onus falls on those who assert that an adult’s choice is not competent.