In fact, however, the decision to continue cryopreserving an embryo in liquid nitrogen is probably not an instance of using extraordinary means, since the burden and costs involved in taking care of embryonic children in this way are actually minimal. When we have children, we have a duty to clothe, feed, care for, and educate them, all of which costs plenty of money. When our children are frozen, we don’t need to clothe, feed, or educate them; our care for them can only be expressed by paying the bill each month to replenish the liquid nitrogen in their storage tanks. This way of caring for our children is obviously unusual, but it does not seem morally extraordinary in terms of achieving the desired end of safeguarding their physical integrity.