[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 vict… - David Pearce

[T]rue hedonic engineering, as distinct from mindless hedonism or reckless personal experimentation, can be profoundly good for our character. Character-building technologies can benefit utilitarians and non-utilitarians alike. Potentially, we can use a convergence of biotech, nanorobotics and information technology to gain control over our emotions and become better (post-)human beings, to cultivate the virtues, strength of character, decency, to become kinder, friendlier, more compassionate: to become the type of (post)human beings that we might aspire to be, but aren't, and biologically couldn't be, with the neural machinery of unenriched minds. Given our Darwinian biology, too many forms of admirable behaviour simply aren't rewarding enough for us to practise them consistently: our second-order desires to live better lives as better people are often feeble echoes of our baser passions.

Some days will be sublime. Others will be merely wonderful. But critically, there will be one particular texture ("what it feels like") of consciousness that will be missing from our lives; and that will be the texture of nastiness.

A few centuries from now, if involuntary suffering still exists in the world, the explanation for its persistence won't be that we've run out of computational resources to phase out its biological signature, but rather that rational agents – for reasons unknown – will have chosen to preserve it.