Some days will be sublime. Others will be merely wonderful. But critically, there will be one particular texture ("what it feels like") of consciousn… - David Pearce

[H]uman nature as encoded in our DNA isn't immutable. Mankind's barbaric track-record to date is an unreliable guide to the future. If Homo sapiens' nastier alleles and their more sinister combinations can be silenced or edited out of the genome, and new improved code-sequences inserted instead, then the pessimists will be confounded. A major discontinuity in the development of life lies ahead. Providentially, we've learned that the DNA-driven world isn't written in God-given proprietary code it would be hubris to tamper with, but in bug-ridden open source amenable to improvement.

The negative utilitarian might reply that this formulation of the problem is misleading. We do not live in a notional world where only a pinprick, minor pains, or even just "mild" suffering exists. In the real world, frightful horrors as well as humdrum malaise occur every day. The intensity of suffering is sometimes so dreadful that its victims are prepared to destroy themselves to bring their torment to an end. Each year, some 800,000 people across the planet kill themselves while in the grip of suicidal despair. Tens of millions of people are severely depressed or suffer chronic neuropathic pain. By way of contrast, the genteel conventions of an ethics seminar in academic philosophy, or the scholarly technicalities of a journal article, simply fail to come to terms with the enormity of what's at stake. To talk of a "pinprick" is to trivialise the NU ethical stance.

[I]n the wake of the growth of the animal-rights movement, there has recently arisen a hitherto unfelt need to demonise and demean our non-human victims - and those who try to help them - now that our previously well-nigh unquestioned right to kill and exploit them is being challenged. Bloodsports enthusiasts, for instance, currently spend a lot of time cataloguing the alleged depredations of our victims on the environment. Recreational animal-killers go to extraordinarily lengths to avoid admitting that they themselves enjoy hunting and killing other creatures for fun. But then until a few years ago such rationalisations seemed scarcely called for. Selfish DNA had honed our intuitions so that the most agonising bloodshed seemed simply "natural".