| 4675 | The sanctity of life doctrine implies a serious increase of abnormality among the population [Glover] |
| Full Idea: Accepting views about the sanctity of life of the foetus commits us to a policy of drastically increasing the proportion of the population who are seriously abnormal. | |
| From: Jonathan Glover (Causing Death and Saving Lives [1977], §11.7) | |
| A reaction: This is a utilitarian view, and one with which I sympathise. We can't steamroller women's feelings for some greater dream about humanity, but the larger picture is vital to the discussion. |
| 3783 | How can utilitarianism decide the ideal population size? [Glover] |
| Full Idea: There are deep problems for utilitarianism in trying to work out what the ideal population size would be. | |
| From: Jonathan Glover (Introductions to Utilitarianism and its Critics [1990], Pt Four) |
| 18625 | To maximise utility should we double the population, even if life somewhat deteriorates? [Kymlicka] |
| Full Idea: Morally, should we double the population, even if it means reducing each person's welfare by almost half (since that will still increase overall utility)? | |
| From: Will Kymlicka (Contemporary Political Philosophy (1st edn) [1990], 2.4.b) | |
| A reaction: [He cites Derek Parfit for this] The key word is 'almost', which ensures a small increase in overall utility. I think this is a particularly good objection to utilitarianism, which aims to maximise an abstraction called 'utility'. |
| 20677 | Since 1500 human population has increased fourteenfold, and consumption far more [Harari] |
| Full Idea: In the year 1500 there were about 500 million Homo sapiens in the world. Today there are 7 billion. …Human population has increased fourteenfold, our production 240-fold, and energy consumption 115-fold. | |
| From: Yuval Noah Harari (Sapiens: brief history of humankind [2014], 14 'Discovery') | |
| A reaction: We really need to grasp how extraordinary this is. |
| 20688 | People 300m tons; domesticated animals 700m tons; larger wild animals 100m tons [Harari] |
| Full Idea: The combined mass of homo sapiens is about 300 million tons; the mass of all domesticated farmyard animals is about 700 million tons; the mass of the surviving larger wild animals (from porcupines up) is less than 100 million tons. | |
| From: Yuval Noah Harari (Sapiens: brief history of humankind [2014], 18 'Permanent') | |
| A reaction: These really are figures that deserve much wider currency. Every school entrance hall needs a board with a few of the basic dramatic statistics about human life on Earth. |