✶Explainer00:30
1 in 3 Men, 1 in 5 Women Haven't Had Sex in a Year
Debra Soh explains that she started out skeptical that the 'sex recession' was real, but after reviewing multiple data sets she found consistent evidence that a large share of young people are sexless. She frames this as the starting premise of her book, which then investigates what is filling the gap left by declining sex.
- Multiple data sets consistently show 1 in 3 men and 1 in 5 women have not had sex in the past 12 months
- The decline is concentrated among millennials and Gen Z
- Soh was initially skeptical the 'sex recession' was real before reviewing the data herself
- Her book Sex Extinction investigates what is replacing sex (porn, OnlyFans, AI companions)
“We see consistently with multiple data sets that one in three men and one in five women have not had sex in the past 12…”
#sex-recession#statistics#gen-z#millennials
✶Explainer04:00
The Sex Recession Has Been Building Since the '90s
Soh traces the sex recession back roughly 30 years, with the decline tapering off in the 1990s and accelerating sharply in the last 20 years. She points to the internet, smartphones, and social media as major drivers, along with rising political and gender-based hostility that makes people less willing to date each other.
- Decline has been documented for ~30 years, starting to taper in the '90s
- Most prominent acceleration has been in the last 20 years
- COVID made things worse but the trend predated the pandemic
- Social media, meant to connect people, seems to have increased political and gender-based division, discouraging dating
“Sadly, social media was supposed to make us more connected, and it's if anything seems to made us more divided.”
#sex-recession#social-media#history#covid
✶Explainer07:00
The '3-6-9 Rule': Why Some Women's Dating Checklists Are Unrealistic
Soh explains hypergamy — the evolutionary tendency for women to seek partners of equal or higher status — and how online culture has exaggerated it into a rigid checklist (6 feet tall, six-figure income, 6-inch penis) that doesn't actually correlate with relationship success. She argues both sexes have developed unrealistic standards fueled by social media.
- Hypergamy is a real, evolutionarily-grounded pattern of women preferring same-or-higher-status partners
- The internet has exaggerated it into the '3-6-9 rule' (6ft, six figures, 6-inch penis)
- None of those specific criteria actually correlate with relationship or marriage success
- Men have also developed unrealistic expectations of women's looks, partly fueled by edited social media images
“If a man does not meet those criteria, he's not considered worthy of your time in, say, the internet dating culture for women.”
“Evolutionary psychology and biology is not prescriptive... it's just basically generalizing... and like anything the internet takes it and just runs away with it.”
#hypergamy#dating#social-media#evolutionary-psychology
✶Explainer13:30
The 'Tall Girl Problem': Why Successful Women Struggle to Find Partners
Chris explains a concept he calls the 'tall girl problem' (later co-opted and renamed by others): as more women become high-earning and high-achieving, the pool of men who are perceived as equally or more successful shrinks, leaving many accomplished women unable to find a partner they feel attracted to, while a small elite of top men gains disproportionate options.
- Rising numbers of high-performing women face a shrinking pool of men seen as socioeconomically 'above' them
- The handful of ultra-successful men at the top gain an 'invisibility cloak' effect — average men aren't seen as viable protector/providers
- Casual sex with a high-status man can distort a woman's own self-assessed 'mate value,' making future matching harder
- A man losing his job doubles his likelihood of divorce; a woman losing her job shows no such effect
“That gives most men this sort of invisibility cloak that means that they're not seen by women as potential protector providers.”
“There is a difference between what you can get on rent and what you can buy.”
#hypergamy#dating#socioeconomics#gender-dynamics
✶Explainer22:30
How the Pill Rewires Female (and Male) Mating Psychology
Soh explains that hormonal birth control halts ovulation, the window when women's sexual interest, provocative dress, and desire to socialize peak — and when men can subconsciously detect fertility cues and engage in more mate-guarding. Blunting this cycle across a large share of women may be altering both female sexual interest and male mating behavior at a population level, and few women are told this when first prescribed the pill.
- Only about 11% of US women of childbearing age are on the pill specifically, per CDC data cited
- Off the pill, women during ovulation dress more provocatively and are more likely to go out and meet partners
- Men can detect ovulation via scent, appearance, and gait, and show more mate-guarding behavior when a non-pill partner is ovulating
- Many teenage girls start the pill for non-sexual reasons (skin, cycle regulation) without being told about this side effect
- Chris adds that women's attraction to their partner can shift after coming off the pill, sometimes dramatically
“If you're halting that process in a woman or an entire multiple generations of women... men who are into [relationships] will show more mate-guarding behaviors…”
“You should come off the pill and work out if you still like your boyfriend.”
#birth-control#hormones#mating-psychology#womens-health
✶Explainer33:30
The Fish Studies Behind Falling Testosterone
Soh describes research on Japanese fish exposed to pharmaceutical waste and water contaminants, which caused lethargy, disrupted courtship behavior, and intersex physical changes. She connects this animal literature to declining human testosterone over the last 40 years, a decline that persists even after researchers control for age, diet, weight, and lifestyle.
- Testosterone levels have been declining for ~40 years, worsening in the last 20, even after controlling for diet/exercise/lifestyle
- A Japanese fish study found fish exposed to pharmaceutical waste became lethargic, had disrupted courtship, and showed intersex changes
- Researchers believe something specific to the modern environment (food, water supply) is driving the trend
- Chris connects this to men's testosterone/sex drive dropping when isolated from fertile women
“Researchers have accounted for things like age, diet, weight, exercise, lifestyle choices... and still they say there's something going on here where it is environmental.”
#testosterone#endocrine-disruptors#environment#fertility
✶Explainer74:00
Boob Jobs, Labiaplasty, and Penis Filler: Gen Z's Porn-Influenced Cosmetic Boom
Soh describes a wave of cosmetic procedures among young people that she ties directly to pornography exposure: breast augmentation and labiaplasty are increasingly common among young women, while young men are getting penile filler injections purely to look better in photos. She also flags very young women (under 30) getting facelifts and buccal fat removal, which paradoxically makes them look older once natural facial fat loss sets in later.
- Breast augmentation and labiaplasty are increasingly popular among Gen Z women, which Soh links to porn influence
- Men are getting penile filler injections largely for photos/sexting, not real-life encounters
- Women under 30 are increasingly getting facelifts and upper-eye lifts despite lacking visible aging signs
- Buccal fat removal in young women removes 'baby fat,' but later natural facial fat loss can leave them looking gaunt, requiring filler to compensate
“It is breast augmentation for Gen Z women... I do think that's influenced by pornography.”
“Guys are getting filler injections into their penis for even sexting purposes. Like they just want to look better.”
#plastic-surgery#gen-z#porn#body-image
✶Explainer86:00
The Study That Blows Up 'Looksmaxing': Formidability Beats Attractiveness for Predicting Sexual Success
Chris cites David Puts' research where women rated men's attractiveness from photos and men separately rated the same men's fighting formidability. A year later, researchers checked the men's actual sexual success: female attractiveness ratings had almost zero predictive power, while male formidability ratings strongly predicted it — suggesting 'looksmaxing' trends may be driven by intrasexual competition with other men, not what women actually find attractive.
- Women rated photographed men for attractiveness; men separately rated the same photos for perceived fighting ability ('formidability')
- One year later, researchers surveyed the men's actual sexual success over that period
- Female attractiveness ratings had near-zero correlation with real sexual success
- Male formidability ratings were strongly predictive, suggesting looksmaxing trends (jaw, brow, height) target other men's respect, not female attraction
“The female ratings of attractiveness had basically zero predictive power for their sexual success, but the male ratings of formidability were very predictive.”
#looksmaxing#attractiveness#evolutionary-psychology#research
✶Explainer101:00
Inside the Sex Doll Market: Who's Buying and Why
Soh shares data from her research into sex dolls and robots, including a company reporting $20 million in sales during the pandemic. She profiles the typical buyer as a high-school-educated man earning around $40K a year, often heartbroken, divorced, or unable to attract real-life partners, with prices ranging from a few hundred to tens of thousands of dollars.
- One sex doll company reported $20 million in sales during the pandemic
- Typical buyers are mostly high-school-educated men earning roughly $40K/year, though some six-figure earners also buy them
- Prices range from a couple hundred dollars to tens of thousands depending on realism
- Buyers are often heartbroken, divorced, or lack the means/confidence to attract real partners
- Robots remain limited in movement (hip gyration, internal suction) compared to stationary dolls, but AI software integration is already technically possible
“During the pandemic one company told me they made $20 million in sales, which is astronomical.”
#sex-dolls#technology#loneliness
✶Explainer103:30
People Are Falling in Love With Their AI Chatbots
Soh describes testing dozens of AI companion apps for her book and being surprised at how realistic and emotionally convincing they are, including realistic voice interaction and flirtation. She notes that when platforms remove erotic role-play features (as happened with a ChatGPT model), users report devastation comparable to social rejection, and cites a Pew study that over half of single people aren't interested in dating at all.
- Soh made dozens of AI companions across multiple platforms while researching her book and found them highly realistic in text and voice
- When platforms remove erotic roleplay capability, users report feeling devastated, comparing it to social rejection ('my AI doesn't remember me anymore')
- A Pew study cited found over half of single people are not interested in dating at all
- Soh expresses concern that AI companions may deepen the disconnect already caused by dating-app fatigue and sex ratio imbalances
“People do fall in love with their AI chatbots. And I before I tested them out, I didn't think such a thing would be possible.”
“There's a study by Pew showing that over half of single people are not interested in dating at all.”
#ai-companions#loneliness#technology#dating