The Hedonistic Imperative
By David Pearce
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The Hedonistic Imperative outlines how genetic engineering and nanotechnology will abolish suffering in all sentient life.
The abolitionist project is hugely ambitious but technically feasible. It is also instrumentally rational and morally urgent. The metabolic pathways of pain and malaise evolved because they served the fitness of our genes in the ancestral environment. They will be replaced by a different sort of neural architecture - a motivational system based on heritable gradients of bliss. States of sublime well-being are destined to become the genetically pre-programmed norm of mental health. It is predicted that the world's last unpleasant experience will be a precisely dateable event.
Two hundred years ago, powerful synthetic pain-killers and surgical anesthetics were unknown. The notion that physical pain could be banished from most people's lives would have seemed absurd. Today most of us in the technically advanced nations take its routine absence for granted. The prospect that what we describe as psychological pain, too, could ever be banished is equally counter-intuitive. The feasibility of its abolition turns its deliberate retention into an issue of social policy and ethical choice.
David Pearce
Long past my sell-by date but doing all I can to keep fit with daily exercise and a healthy breakfast I spend most of my time writing and listening to the radio with occasional excursions in the local countryside on my electric-assist bike. I live alone in southern France close to the river Rhone and possibly on borrowed time as there is a large nuclear plant close by.
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The Hedonistic Imperative - David Pearce
INTRODUCTION
Happiness is an illusion; only suffering is real.
(Voltaire)
0.1 The Naturalisation of Heaven.
This manifesto combines far-fetched utopian advocacy with cold-headed scientific prediction. The Hedonistic Imperative outlines how nanotechnology and genetic engineering will eliminate aversive experience from the living world. Over the next thousand years or so, the biological substrates of suffering will be eradicated completely. Physical
and mental
pain alike are destined to disappear into evolutionary history. The biochemistry of everyday discontents will be genetically phased out too. Malaise will be replaced by the biochemistry of bliss. Matter and energy will be sculpted into life-loving super-beings animated by gradients of well-being. The states of mind of our descendants are likely to be incomprehensibly diverse by comparison with today. Yet all will share at least one common feature: a sublime and all-pervasive happiness.
This feeling of absolute well-being will surpass anything contemporary human neurochemistry can imagine, let alone sustain. The story gets better. Post-human states of magical joy will be biologically refined, multiplied and intensified indefinitely. Notions of what now passes for tolerably good mental health are likely to be superseded. They will be written off as mood-congruent pathologies of the primordial Darwinian psyche. Such ugly thoughts and feelings will be diagnosed as typical of the tragic lives of emotional primitives from the previous era. In time, the deliberate re-creation of today's state-spectrum of normal waking and dreaming consciousness may be outlawed as cruel and immoral.
Such speculations may currently sound fantastical. Yet the ideas behind this manifesto may one day be regarded as intellectually trite - albeit today morally urgent. For as the genetic revolution in reproductive medicine unfolds, what might once have been the stuff of millennialist fantasy is set to become a scientifically feasible research program. Its adoption or rejection will become, ultimately, a social policy issue. Passively or actively, we will have to choose just how much unpleasantness we wish to create or conserve - if any - in eras to come.
0.2 Saving Vehicles With Bad Drivers.
Blind selective pressures have acted on living organisms over hundreds of millions of years. Darwinian evolution has powerfully favoured the growth of ever more diverse, excruciating, but also more adaptive varieties of psychophysical pain. Its sheer nastiness effectively spurs and punishes the living vehicles of genetic replicators. Sadness, anxiety and discontent are frequently good for our genes; they're just psychologically bad for us. In absolute terms, global suffering is probably still increasing as the population explosion continues. Human ingenuity has struggled, often vainly, to rationalise and somehow derive value from the most frightful anguish. But over the aeons, the very anguish which intermittently corrodes the well-being of the individual organism has differentially promoted the inclusive fitness of its DNA. Hence it has tended to get inexorably worse.
Of course such doom-and-gloom isn't the whole picture. The world's horrors can be contrasted with life's rewarding experiences. People sometimes have fun. Long-lasting depression is rarely adaptive. Yet what Michael Eysenck describes as the hedonic treadmill
ensures that very few of us can be very happy for very long. An interplay of cruelly effective negative feedback mechanisms is at work in the central nervous system. Feedback-inhibition ensures that a majority of people would be periodically bored, depressed or angst-ridden in a recreated Garden of Eden.
A small minority of humans do in fact experience states of indefinitely prolonged euphoria. These states of involuntary well-being are usually pathologised as manic
. Unlike unipolar depression, sustained unipolar euphoric mania is very rare. Other folk who just have high hedonic set-points
, but who aren't manic or bipolar, are sometimes described as hyperthymic
instead. This isn't a common mindset either. Bipolar disorder
, on the other hand, is experienced in the course of a lifetime by perhaps one in a hundred people or more. Popularly known as manic-depression, bipolar disorder has several sub-types. Mood characteristically alternates between euphoria and abject despair. Cycles may vary in length. It is a complex genetic condition which runs in families. Typically, bipolarity is marked by a genetic variation in the serotonin transporter as compared to euthymic
normals. Serotonin is a neurotransmitter involved in sleep, sociability, feeding, activity, impulse-control, mood, and a lot else besides. The serotonin transporter mops up excess
serotonin released by nerve cells into the synapses. Very crudely, manic states are associated with enhanced dopamine and norepinephrine function; in mania, serotonin function is dysregulated or low.
Sadly, among today's bipolars
manic exuberance can spin out of control. Euphoria may be accompanied by hyperactivity, sleeplessness, chaotically racing ideas, pressure of speech and grandiose thought. Hyper-sexuality, financial excesses and religious delusions are common. So is rampant egomania. Sometimes dysphoria may occur. In dysphoric mania the manic high
is actually unpleasant. The excited subject may be angry, agitated, panicky, paranoid, and destructive. When in the grip of classic euphoric mania, however, it's hard to recognise that anyone might think anything is wrong. This is because everything feels utterly right. To suppose otherwise is like going to Heaven and then being invited to believe there has been a mistake. It's not credible.
Today, euphoric (hypo-)mania is liable to be clinically subdued with drugs. [Hypomania
denotes simply a milder mania.] Toxic medication
can depress elevated mood to duller but normal
levels. Such flatter and supposedly healthier levels of emotion enable otherwise euphoric people to function within contemporary society. Compliance with a medically-dictated treatment-regimen (lithium, sodium valproate, carbamazepine, etc.) will be enhanced if the victim can be persuaded that euphoric well-being is pathological. (S)he can then look for warning signs and symptoms. By the norms of our genetically-enriched posterity, however, it is the rest of us who are chronically unwell - if not more so. Contemporary standards of mental health are just pathologically low. Our super-well descendants, by contrast, will enjoy a glorious spectrum of new options for mental super-health. They may opt to combine emotional stability, resilience and serotonergic
serenity, for instance, with the goal-oriented energy, optimism and initiative of a raw dopaminergic
high. Post-humans will discover that euphoric peak experiences can be channelled, controlled and genetically diversified, not just medically suppressed.
For there is a cruel irony here. Clinically prescribed mood-darkeners would be laughably redundant for the great bulk of humanity. At present, life for billions of genetically normal
people is often very grim indeed. No amount of piecemeal political and economic reform, nor even radical social engineering, can overcome this biological reality. Today's billion-and-one routes to supposedly lasting happiness are pursued in the guise of innumerable intentional objects. [Intentionality in philosophy-speak is the 'aboutness' or 'object-directedness' of thought]. We convince ourselves that all manner of things would potentially make us happy. All these peripheral routes to personal fulfilment are not merely vastly circuitous and inefficient. In the main, they just don't, and can't, durably work. At best, they can serve as palliatives of the human predicament. If the mind/brain's emotional thermostat, as it were, is not genetically and/or pharmacologically reset, then even the greatest triumphs and successes turn to ashes. Lottery winners, cup-final hat-trick scorers and blissful newly-weds are left time and again to discover this fate anew. Even those of us who tend to lead a relatively happy day-to-day existence will, in the course of a lifetime, undergo spells of wretched unhappiness and disappointment. If we opt to have children, our corrupt code ensures they will periodically suffer a similar fate.
It would be easy but unwarranted simply to extrapolate past and present trends into the indefinite future. Usually, we assume without question that our descendants - however different from us in other respects - will be biologically prone to suffer negative states of consciousness. We suppose that future generations will sometimes feel distress, both subtle and crude, just as we have always done ourselves. Yet this assumption may be naïve. The neurochemical basis of feeling and emotion is rapidly being unravelled. The human genome is going to get comprehensively decoded and rewritten. In ages to come, it will become purely an issue of (post-)human decision whether unpleasant modes of consciousness are generated in any form or texture whatsoever. Aversive experience is a sinister anachronism in the age of post-genomic medicine. We will soon have to decide if we should inflict suffering on ourselves or on others. A terrible but once unavoidable fact of organic life then becomes instead a matter for active moral choice when one decides upon the genetic make-up of one's future kids. And that choice can be declined.
0.3 Humans Are Not Rats.
One possibility, though not an option to be canvassed here, is that in freeing ourselves from the nightmarish legacy of our evolutionary past we might choose to enjoy a lifetime of raw, all-consuming orgasmic bliss. This bliss needn't be directed at any well-defined intentional objects. We - or more likely our robot-serviced descendants - wouldn't be ecstatic about anything in particular. Our nature would be constitutionally ecstatic. Genetically pre-programmed euphoria would be as natural and inevitable as breathing. We would simply be happy about being happy.
The defining image here, perhaps, is the notional human counterpart of the experimenter's lever-pressing rat. Microelectrodes can be implanted directly into the mind/brain's pleasure centres. These lie in the mesolimbic dopamine system, the core of the brain's reward circuitry. It extends from the ventral tegmentum to the nucleus accumbens, with projections to the limbic system and orbitofrontal cortex. Notoriously, the wired rat will indulge in frenzied bouts of intra-cranial self-stimulation for days on end. The experience is so wonderful that it takes precedence over food and sleep. Intra-cranial self-stimulation is preferred even to sex. The rat doesn't need to undergo a contrasting low
to appreciate the high
. The little bundle of joy is apparently incapable of becoming bored with, or physiologically tolerant to, the rodent equivalent of Heaven.
Such animalistic images are unedifying to all but the most unabashed hedonist. Yet more subtly engineered human counterparts of the euphoric rat are perfectly feasible. Centuries hence, any pleasure-maximising ecstatics will be using their personal freedom to exercise what is, in an ethical utilitarian sense, a legitimate lifestyle choice.
The wirehead
option, however, will be only one item taken from a very large menu. Unfortunately, it is also the most easily visualised. So the spectre of perpetual intra-cranial self-stimulation can easily be taken, wrongly, to symbolise the whole approach that The Hedonistic Imperative represents. The desperate ethical urgency that underlies the abolitionist project may thus too easily be dismissed. For humans, as we are solemnly reminded, are not rats.
0.4 Life In Dopaminergic Overdrive.
An important point to stress in the discussion to follow is that many dopamine-driven states of euphoria can actually enhance motivated, goal-directed behaviour in general. Enhanced dopamine function makes one's motivation to act stronger, not weaker. Hyper-dopaminergic states tend also to increase the range of activities an organism finds worth pursuing. Outside the pleasure-laboratory, such states of necessity focus on countless different intentional objects. So humanity's future as envisaged in this manifesto is not, or certainly not just, an eternity spent enraptured on elixirs of super-soma or tanked up on high-octane pleasure-machines. Nor is it plausible that posterity will enjoy only the dullish, opiated sensibility of the heroin addict. Instead, an extraordinarily fertile range of purposeful and productive activities will most likely be pursued. Better still, our descendants, and in principle perhaps even our elderly selves, will have the chance to enjoy modes of experience we primitives cruelly lack. For on offer are sights more majestically beautiful, music more deeply soul-stirring, sex more exquisitely erotic, mystical epiphanies more awe-inspiring, and love more profoundly intense than anything we can now properly comprehend.
I shall first schematically set out how a naturalistic, secular paradise of effectively everlasting happiness is biotechnically feasible. Second, I will argue why its realisation is instrumentally rational and ethically mandatory. Third, I will offer a sketch of when and why such a scenario is likely to come to pass in some guise or other. And, finally, I shall try to anticipate some of the most common if not always cogent objections that the prospect of psychochemical nirvana is likely to arouse, and attempt to defuse them.
1. HOW?
"God's in His Heaven -
All's right with the world!"
(Robert Browning)
1.0 Sabotage at the Mill.
To escape from the hedonic treadmill we must first sabotage a small but vicious set of negative feedback mechanisms. These are genetically coded into the mind/brain. Recreational drugs of abuse do not transcend or subvert such mechanisms. On the contrary, they actually bring them into play with a vengeance. Today's quick-and-dirty euphoriants are nonetheless instructive. They give us a tantalising glimpse of what humanity's natural state of consciousness could become if several ugly neural metabolic pathways were inhibited or eliminated.
A better clue to organic life's emotional future dates from the early 1950s. The unlikely guinea-pigs were veterans at a U.S. tuberculosis sanatorium. Residents prescribed the MAO-inhibiting drug iproniazid were not merely cured of their tuberculosis. After a few weeks of treatment, many of them started to feel exceptionally happy. Doctors described their patients, rather over-colourfully perhaps, as dancing in the aisles
. For the most part, the veterans had not previously been clinically depressed, as distinct from rather crotchety. Nor was their new-found euphoria simply an understandable reaction to restored good health. Moreover, in contrast to most recreational drugs, tolerance to the MAO-inhibitor's mood-brightening side-effect, and the consequent danger of uncontrolled dose-escalation, didn't set in. Instead, it transpires that MAO-inhibitors as a class can induce a benign, long-term re-regulation of several families of nerve-cell receptor proteins involved in making us happy or sad. Quite by accident, modern medicine had stumbled on the sustainably mood-lifting properties of a remarkable and diverse category of drugs, the monoamine oxidase inhibitors.
Monoamine oxidase has two main types, uninformatively labelled A and B. MAO is an enzyme responsible for the deamination of monoamine neurotransmitters such as dopamine, noradrenaline and serotonin. It also deaminates trace amines such as phenylethylamine, found in chocolate and released when one is in love. MAO isoenzyme-A deaminates serotonin, norepinephrine and, to a lesser extent, dopamine. Isoenzyme-B breaks down dopamine and phenylethylamine. The action of monoamine neurotransmitters on the post-synaptic receptors, and the post-transduction intracellular cascade they induce, plays a vital role in mediating mood and emotion. Depletion of monoamines in the synaptic vesicles e.g. by the anti-hypertensive drug reserpine, can sometimes precipitate severe and even life-threatening depression. Elevated levels of dopamine, on the other hand, are associated with (hypo-)manic euphoria.
By modulating the synaptic availability, and consequent receptor re-regulation, of simple neurotransmitters on a long-term basis, the MAO-inhibitors were to serve as the first of a disparate group of drugs uninvitingly categorised as antidepressants
. Some of today's mediocre crop of licensed products, such as the tricyclics, are in general unrewarding to people who aren't rated clinically depressed. They tend to be sedating. Their action dulls, however mildly, the intellect and sensibility. Most traditional therapeutic agents - at least until the development of (relatively) selective serotonin re-uptake blockers such as fluoxetine (Prozac) and noradrenaline reuptake blockers such as reboxetine - are dirty
and unselective drugs. They have lots of troublesome side-effects. They frequently flatten rather than deepen the emotions. Several brands, such as the older, unselective and irreversible MAO-inhibitors, are potentially dangerous if taken in the absence of rigorous dietary restrictions. All of them, thanks to the puritanical ethos of the medical establishment, have been tested and brought to market with the deliberate additional aim of not inducing a euphoric sense of well-being (abuse-potential
) in the user. Most contemporary antidepressants
only modestly outperform a placebo in well-controlled clinical trials.
It is the twenty first century's successors to these unpromising-sounding drugs, however, and not today's fast-acting recreational euphoriants, that promise to deliver the world's supposedly euthymic
population from the sick psycho-chemical ghetto bequeathed by our genetic past. Potent, long-acting mood-brighteners - but not clinical psychic anaesthetisers
or quick-hit
street-drugs - will serve as a life-enriching stop-gap until radical gene-therapies enable us to knock out the Darwinian pathologies of consciousness altogether. Time-delayed designer euphoriants will foreshadow an extended product-line of innovative treatments for all kinds of malaise. Collectively, such interventions will cure what post-human posterity will recognise as a gene-driven spectrum of psychiatric disorders characteristic of Darwinian life. A lot of the time at present, we just don't - and can't - conceptualise the full extent of how unwell we are. For there are