What Will the World Look Like Without the Traditional Nuclear Family?

Robots and computers will not just eliminate our jobs; they will also dissolve important aspects of the family and our pair-bonded partnerships.

Robots and computers will not just eliminate our jobs; they will also dissolve important aspects of the family and our pair-bonded partnerships. After all, one of the reasons why families stay close is because they are functionally like “military platoons,” struggling to survive in hostile environments with limited resources. Nineteenth century theories, like Friedrich Engels', suggested that nuclear families were a product of industrialization, but more recent anthropology reverses this order — suggesting instead that industrialization was so successful in Europe because nuclear families facilitated it.


Anthropologists Timothy Earle and Allen W. Johnson studied hundreds of human societies, in their Evolution of Human Societies, and discovered that the nuclear family is the default form of human organization, because it allows for maximally flexible management of resources, limited demands on those resources, and trustworthy social ties. Some suggest that the nuclear family is the original human institution — arguably it’s not an institution at all, but a biological individual, distributed through space and time. But if the traditional niche of limited resource competition is transformed by technology, then the family changes too.

Children will still need to be apprenticed, and socialized, and family members will still love each other, so some features of the family will continue. But wherever members cannot get along, they need not stay locked in the historical nuclear unit of needful reciprocity. Even positive nepotism, like family businesses, which forge strong, albeit difficult, bonds will not exist in a post labor system. When you don’t need each other to survive, then you don’t endure each other as well either. It would be interesting to do a social science study on very wealthy families to determine the relative strength of their family bonds. It’s an empirical question, really, but I’ll wager money that the bonds between the wealthy are weaker than those between the underprivileged.

All of this is already happening, of course. More than half of every marriage ends in divorce, and families are now composed and recomposed in impermanent patterns. When women were no longer financially dependent on men, they did not stay in unsatisfactory partnerships. 

Of course, maybe this is all for the good. Removing the codependency of families, vis a vis government-supplied basic resources, frees people up to find and compose their own “families” (fictive kin). So too, in the realm of romance, we will have less pragmatic justification for pair-bonds, and people will choose to be with each other for disinterested reasons. I confess that I’m suspicious of the strength of such disinterested bonds, but a great many people will welcome the new machine era of no-strings-attached love.

All of this is already happening, of course. More than half of every marriage ends in divorce, and families are now composed and recomposed in impermanent patterns. When women were no longer financially dependent on men, they did not stay in unsatisfactory partnerships. Presumably this pattern will extrapolate out to other relationships once we’re all unemployed. 

Sexuality will prosper in the second machine age. Nothing kills a libido like a 10-hour workday. Now imagine the sexual possibilities of a post-rat-race world. Talk about actualizing your potential! Starting with widely available birth control in the 20th century, sexuality disconnected from procreation. One suspects that it will continue its trajectory of connoisseur-level exploration in the second machine age. Once robots take our jobs, we will all become free to pursue our Tantric aspirations for all-day coitus.

Of course, one of the great aphrodisiacs in the genetic intrigue of sexual selection is wealth and power. Just as female pea-hens have been drawn to preening peacocks, so too human women have been drawn to wealthy tycoons. But presumably all that will diminish when entrepreneurial innovation and management-class wealth is reduced. Thankfully, humans also find creative talent very attractive in a mate, and that resource will be in much greater abundance when we’re all unemployed. 

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Stephen T. Asma is Professor of Philosophy at Columbia College Chicago, where he is also Senior Fellow of the Research Group in Mind, Science and Culture. He is the author of ten books, including The Evolution of Mind and Against Fairness and writes regularly for The New York Times, the Chronicle of Higher Education, and Skeptic magazine. Asma is also a blues/jazz musician who has played onstage with many musical artists, including Bo Diddley and Buddy Guy. His website is www.stephenasma.com

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New research establishes an unexpected connection.

Reactive oxygen species (ROS) accumulate in the gut of sleep-deprived fruit flies, one (left), seven (center) and ten (right) days without sleep.

Image source: Vaccaro et al, 2020/Harvard Medical School
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We don't have to tell you what it feels like when you don't get enough sleep. A night or two of that can be miserable; long-term sleeplessness is out-and-out debilitating. Though we know from personal experience that we need sleep — our cognitive, metabolic, cardiovascular, and immune functioning depend on it — a lack of it does more than just make you feel like you want to die. It can actually kill you, according to study of rats published in 1989. But why?

A new study answers that question, and in an unexpected way. It appears that the sleeplessness/death connection has nothing to do with the brain or nervous system as many have assumed — it happens in your gut. Equally amazing, the study's authors were able to reverse the ill effects with antioxidants.

The study, from researchers at Harvard Medical School (HMS), is published in the journal Cell.

An unexpected culprit

The new research examines the mechanisms at play in sleep-deprived fruit flies and in mice — long-term sleep-deprivation experiments with humans are considered ethically iffy.

What the scientists found is that death from sleep deprivation is always preceded by a buildup of Reactive Oxygen Species (ROS) in the gut. These are not, as their name implies, living organisms. ROS are reactive molecules that are part of the immune system's response to invading microbes, and recent research suggests they're paradoxically key players in normal cell signal transduction and cell cycling as well. However, having an excess of ROS leads to oxidative stress, which is linked to "macromolecular damage and is implicated in various disease states such as atherosclerosis, diabetes, cancer, neurodegeneration, and aging." To prevent this, cellular defenses typically maintain a balance between ROS production and removal.

"We took an unbiased approach and searched throughout the body for indicators of damage from sleep deprivation," says senior study author Dragana Rogulja, admitting, "We were surprised to find it was the gut that plays a key role in causing death." The accumulation occurred in both sleep-deprived fruit flies and mice.

"Even more surprising," Rogulja recalls, "we found that premature death could be prevented. Each morning, we would all gather around to look at the flies, with disbelief to be honest. What we saw is that every time we could neutralize ROS in the gut, we could rescue the flies." Fruit flies given any of 11 antioxidant compounds — including melatonin, lipoic acid and NAD — that neutralize ROS buildups remained active and lived a normal length of time in spite of sleep deprivation. (The researchers note that these antioxidants did not extend the lifespans of non-sleep deprived control subjects.)

fly with thought bubble that says "What? I'm awake!"

Image source: Tomasz Klejdysz/Shutterstock/Big Think

The experiments

The study's tests were managed by co-first authors Alexandra Vaccaro and Yosef Kaplan Dor, both research fellows at HMS.

You may wonder how you compel a fruit fly to sleep, or for that matter, how you keep one awake. The researchers ascertained that fruit flies doze off in response to being shaken, and thus were the control subjects induced to snooze in their individual, warmed tubes. Each subject occupied its own 29 °C (84F) tube.

For their sleepless cohort, fruit flies were genetically manipulated to express a heat-sensitive protein in specific neurons. These neurons are known to suppress sleep, and did so — the fruit flies' activity levels, or lack thereof, were tracked using infrared beams.

Starting at Day 10 of sleep deprivation, fruit flies began dying, with all of them dead by Day 20. Control flies lived up to 40 days.

The scientists sought out markers that would indicate cell damage in their sleepless subjects. They saw no difference in brain tissue and elsewhere between the well-rested and sleep-deprived fruit flies, with the exception of one fruit fly.

However, in the guts of sleep-deprived fruit flies was a massive accumulation of ROS, which peaked around Day 10. Says Vaccaro, "We found that sleep-deprived flies were dying at the same pace, every time, and when we looked at markers of cell damage and death, the one tissue that really stood out was the gut." She adds, "I remember when we did the first experiment, you could immediately tell under the microscope that there was a striking difference. That almost never happens in lab research."

The experiments were repeated with mice who were gently kept awake for five days. Again, ROS built up over time in their small and large intestines but nowhere else.

As noted above, the administering of antioxidants alleviated the effect of the ROS buildup. In addition, flies that were modified to overproduce gut antioxidant enzymes were found to be immune to the damaging effects of sleep deprivation.

The research leaves some important questions unanswered. Says Kaplan Dor, "We still don't know why sleep loss causes ROS accumulation in the gut, and why this is lethal." He hypothesizes, "Sleep deprivation could directly affect the gut, but the trigger may also originate in the brain. Similarly, death could be due to damage in the gut or because high levels of ROS have systemic effects, or some combination of these."

The HMS researchers are now investigating the chemical pathways by which sleep-deprivation triggers the ROS buildup, and the means by which the ROS wreak cell havoc.

"We need to understand the biology of how sleep deprivation damages the body so that we can find ways to prevent this harm," says Rogulja.

Referring to the value of this study to humans, she notes,"So many of us are chronically sleep deprived. Even if we know staying up late every night is bad, we still do it. We believe we've identified a central issue that, when eliminated, allows for survival without sleep, at least in fruit flies."

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