In this episode of Hidden Brain, psychologists Paul Eastwick and Ed Lemay discuss how popular evolutionary psychology myths distort our understanding of attraction and relationships. Eastwick challenges widespread beliefs about mate value rankings, exaggerated gender differences in dating preferences, and rigid mating strategies, showing how research reveals these ideas don't match reality. The conversation examines how dating apps amplify artificial gender differences and why stated preferences rarely predict actual attraction.
The episode explores how genuine compatibility develops through shared experiences rather than predetermined criteria, revealing that machine learning models predict exactly zero percent of speed dating outcomes. Lemay discusses projection in relationships—how people impose their own feelings and insecurities onto partners—and shares practical strategies couples use to recognize and address these distortions. Throughout, the episode emphasizes that successful relationships are built through rituals, communication, and the unique "tiny culture" couples create together over time.

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Paul Eastwick critiques the popularized "Evoscript," a set of influential but misleading evolutionary psychology ideas that shape how people approach dating and relationships. The first myth is that each person has a fixed "mate value"—a one-to-ten ranking that determines romantic success. Eastwick debunks this, noting that research shows mate value discrepancies don't actually predict relationship outcomes or breakups.
The second myth claims men prioritize attractiveness while women seek status or wealth. While these factors can play some role, Eastwick stresses that this vastly exaggerates gendered preferences, ignoring that all genders value similar things in relationships—support, celebration, and emotional security.
The third myth suggests individuals must choose between short-term and long-term mating strategies. Eastwick finds this a false binary, noting that relationships are dynamic and evolving, not rigid categories.
Eastwick's research demonstrates that what people claim to desire doesn't reliably predict whom they find attractive when meeting in person. Someone might list "funny" or "adventurous" as top traits but find themselves equally drawn to someone supportive who doesn't fit their declared type. Attraction operates at a subconscious level not captured by preference lists, and most people simply don't date enough to properly introspect on what truly attracts them.
In speed dating research, Eastwick found that while women are somewhat pickier than men (35% versus 50% acceptance rates), the difference is smaller than evolutionary claims suggest. Ongoing relationship studies show both genders desire similar things—mutual support, encouragement, and attachment. However, male influencers like Joe Rogan and Jordan Peterson amplify false claims about gender differences, distorting cultural beliefs about relationships.
Eastwick reveals that dating apps magnify gender differences present only minimally face-to-face. On apps, women accept only 5% of men compared to 35% in speed dating. This design creates artificial scarcity and promotes superficial evaluation, making women's standards seem impossibly high. Eastwick warns that misinterpreting this app-created rejection as evidence of innate female selectivity can fuel misogyny, when in reality the technology—not actual social dynamics—creates this effect.
Eastwick and Shankar Vedantam challenge common perceptions about romantic compatibility, emphasizing that true connection grows organically through shared experiences. Eastwick describes an experiment using machine learning to predict speed dating compatibility based on extensive self-reported data. Despite this wealth of information, the model predicted exactly 0% of compatibility outcomes—attraction proved entirely unpredictable from reported traits or preferences.
Eastwick highlights that compatibility ties closely to shared history and the "tiny culture" couples develop over time—rituals, in-jokes, and customs unique to their relationship. Research shows couples who engage in these rituals report greater happiness. He illustrates this with his own long-distance relationship, where he and his partner created a ritual of cooking the same meal over FaceTime, which continued even after moving in together.
Vedantam and Eastwick agree that finding partners often happens organically within social networks. Eastwick recounts how a friendship led him to meet his partner Amanda through group settings, advocating for an "open casting" approach that remains receptive to a wide range of people, allowing compatibility to develop through shared experiences rather than predetermined criteria.
Vedantam and Ed Lemay explore projection, where individuals impose their own feelings, insecurities, and values onto partners, leading to both understanding and misunderstanding. Lemay explains that people routinely overestimate partner similarity, projecting traits, values, and emotions onto partners. This includes assuming feelings are mirrored—those who feel close assume their partner does too.
This bias helps partners feel secure and validated, but negative projection breeds conflict. If someone fears abandonment or suspects infidelity, projecting these beliefs can provoke arguments and mistrust even without evidence. People frequently bring wounds from prior relationships into current ones, filtering new experiences through old fears. A caller named Molly describes how trauma from previous relationships led her to expect negativity until she worked on healing.
Projection isn't limited to human partners. Lemay notes that people anthropomorphize pets and AI, attributing human-like qualities especially when lonely. This tendency provides comfort but may delay seeking actual human connection.
Eastwick explains that dating apps create environments where decisions are made primarily from photos and brief profiles. When evaluating photographs, there's high consensus about attractiveness. However, this consensus decreases as people get to know each other in real life—someone rated a "six" in a photo might be seen as a "three" by some acquaintances and a "nine" by others after personal interaction. This photograph-consensus versus person-divergence dynamic shows why apps, with their photo-driven design, fail to capture the nuanced and subjective nature of real-life attraction.
Caller Linda describes how she and her husband address his habit of projecting thoughts onto her. They use the phrase "the story I'm telling myself is" to surface interpretations and check those stories with each other, quickly correcting inaccuracies. Lemay notes that these check-ins improve accuracy and diminish projection's distortions.
On their psychologist's advice, Linda's husband placed notes stating "everything Linda does is because she loves me" around the house. Lemay adds that such reassurance helps counteract low self-esteem's negative impact on relationship quality. He recommends cultivating gratitude for a partner's qualities rather than idealizing alternatives.
Instead of defensiveness when faced with unfair projections, Linda and her husband choose compassion. Lemay highlights that compassion communicates care and fortifies the relationship. He notes that responsibility for accurate perceptions is shared—both partners must work together to correct misunderstandings. Linda and her husband report that their deliberate awareness of projection deepens their intimacy each year.
1-Page Summary
Paul Eastwick critiques the popularized "Evoscript," a set of highly influential but misleading evolutionary psychology ideas that shape how people approach dating, attraction, and relationships. He identifies three central myths.
The first myth is that each person possesses a "mate value," a rating from one to ten that indicates universal desirability and predicts romantic success. Eastwick recounts personal advice from a friend after a breakup, who encouraged him to rise from a "six" to a "seven" or "eight" by improving his wardrobe, hitting the gym, or working on his confidence—treating attraction as a rankings game. This competitive, improvement-driven mindset assumes success in romance depends on "leveling up" attributes, putting pressure on individuals to perpetually enhance their desirability.
However, Eastwick debunks this notion, emphasizing that "mate value" discrepancies do not predict relationship outcomes or breakups, a finding supported by long-standing research. The idea that desirability is a quantifiable project, and that boosting one's rank determines their romantic prospects, does not reflect how relationships unfold in reality.
The second myth claims that men and women are fundamentally different in what they seek: men want attractiveness, while women want status or wealth. While these factors can play some role, Eastwick stresses that the crucial question is not whether such attributes matter, but to what extent. This script vastly exaggerates gendered preferences, ignoring that people of all genders value similar things in ongoing relationships—support, celebration of successes, and emotional security.
The third myth is that individuals must choose between short-term and long-term mating strategies and each person’s traits only suit one "lane." According to this logic, people are either "good" at casual hookups or long-term commitment, not both. Eastwick finds this a false binary, noting that relationships are dynamic, evolving, and responsive to context—strategies and desires are not rigid or mutually exclusive.
Eastwick’s research demonstrates that what people claim to desire in a partner—intelligence, humor, adventure—does not reliably predict whom they find attractive when meeting in person. Laboratory studies showing consensus on physical attractiveness based on photographs miss the complexity of real interactions. As people get to know each other over time, initial consensus on who is attractive sharply declines.
When participants meet potential partners face to face, matches based on stated preferences are less predictive than expected. Someone might list "funny" or "adventurous" as top traits, but find themselves equally drawn to someone supportive and sociable who does not fit their declared type. Attraction often operates at a subconscious, intuitive level not captured by lists of preferences.
The weight put on different partner traits is often hidden, even from ourselves. As Vedantam and Eastwick discuss, people cannot fully articulate which combinations of qualities truly matter. Because dating experiences are limited, most individuals lack the breadth of encounters to determine what consistently attracts them, making introspection into preferences especially challenging.
Most people simply do not date enough to compare every relevant combination of traits and properly introspect on why a relationship "clicks," making it difficult to consciously decode the mechanisms of their attraction.
Eastwick investigates whether gender differences in pickiness, ambition, or attraction preferences truly match evolutionary claims. In speed dating research, men are interested in about 50% of potential partners, women say yes to 35%. While women are somewhat pickier, the difference is small. Both ambitious and non-ambitious individuals are equally liked, regardless of gender.
Ongoing relationship studies show men and women desire similar things—the core of a fulfilling partnership is mutual support, encouragement, and attachment, not divergent evol ...
Debunking "Evoscript": Why Evolutionary Psychology Myths About Mate Value, Gender Differences, and Romance Don't Match Reality
Research by Paul Eastwick and commentary by Shankar Vedantam challenges common perceptions about romantic compatibility, emphasizing that true connection grows organically through shared experiences—not through matching on pre-existing criteria.
Eastwick describes an experiment using machine learning to predict compatibility among speed dating pairs, based on extensive self-reported data including traits, preferences, goals, and desires. Despite this wealth of information, the prediction model was able to forecast exactly 0% of the compatibility outcomes. Some couples were drawn to each other and others were not, but there was no discernible pattern based on reported traits or preferences.
Both Eastwick and Vedantam note the unpredictability of romantic attraction. They point out that real romantic connection emerges through interaction and time, not predetermined criteria. Every new romantic encounter is an opportunity to discover fresh preferences and connections, often with people who may not fit initial checklists or ideals.
Eastwick highlights that compatibility is closely tied to the shared history and evolving story between two people. Over time, couples develop a “tiny culture”—a set of rituals, in-jokes, customs, and shared meanings unique to their relationship. These rituals may be small, such as inside jokes or specific routines, but they anchor the relationship.
Research shows that couples who engage in relationship rituals—like cooking the same meal when apart or revisiting shared jokes and stories—report greater happiness on days when they participate in these rituals. Such practices help stabilize the relationship during periods of stress and are not predicted by initial compatibility measures or similarities.
Eastwick illustrates this with his own experience. During a long-distance relationship with his partner Allison, they created a ritual of having dinner together over FaceTime several times a week. They would cook the same meal and, if possible, pair it with the same wine. This ritual became a cornerstone of their bond and continued even after moving in together, demonstrating how rituals grow naturally from shared experience rather than from planned compatibility.
Eastwick underscores that these stabilizing rituals, stories, and shared history are what distinguish true intimacy from paper compatibility. They function as relationship “scaffolding,” providing support and connection even when life gets busy or challenging.
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Compatibility Is Built: Creating Relationships Through Rituals, In-jokes, and Shared History
Shankar Vedantam and Ed Lemay explore the pervasive psychological phenomenon of projection, where individuals impose their own feelings, insecurities, and values onto partners, leading to both understanding and misunderstanding in relationships. Research shows that humans are not the objective observers they believe themselves to be; instead, they respond to ideas and stories they've created about those around them, especially intimate partners.
Social projection refers to the bias where people believe others, especially those close to them, share their own personality, values, and emotions. Ed Lemay explains that people routinely overestimate partner similarity, projecting both positive traits like warmth and outgoingness, as well as negative ones such as moodiness, judgment, or laziness, onto their partners. This includes projecting values: if one values tradition, equality, independence, or wealth, one tends to assume the partner shares those same values.
This projection also extends to reciprocity assumptions. People frequently presume that relationship feelings are mirrored—those who feel close to their partner assume the partner feels similarly. This can create validation and feelings of being understood, which is core to intimacy. But the projections can also be negative; if a partner feels distant or is interested in someone outside the relationship, they may assume their partner is acting the same way.
Lemay notes that this bias helps partners feel more secure, reinforcing beliefs in their own worldviews and behaviors as “right.” For example, if a person interprets opening the car door as a caring gesture, they may project that expectation onto their partner. When unmet, this can create perceived lack of care, although the partner simply may not equate that gesture with affection.
These dynamics are also seen in broader social contexts. People tend to believe members of their political group share their worldview, a manifestation of the false consensus effect. This leads to overestimating polarization and assuming out-group members are more different than they actually are, reinforcing social divides.
Projection produces both relationship benefits and drawbacks. On the positive side, shared traits and worldviews can enhance relationship satisfaction and commitment. Believing the partner shares personal beliefs fosters security, validation, and intimacy, making people feel understood and connected.
However, negative projection breeds conflict and misunderstanding. If a person harbors insecurity or suspicion about their partner’s fidelity or commitment, projecting these onto the partner can lead to conflict and self-fulfilling prophecies. For example, if someone fears abandonment or suspects infidelity, projecting these beliefs might provoke arguments or mistrust, even in the absence of evidence.
Worldviews heavily influence these projections. Research cited by Lemay shows that people with positive worldviews interpret partners’ behaviors in more supportive ways, affecting recall and evaluation of relationship experiences. Conversely, negative worldviews or past hurts can filter perception so that a partner’s actions seem less supportive or even antagonistic, regardless of intent.
People frequently bring wounds and expectations from prior relationships into their current ones, coloring new experiences with fears and assumptions. For example, a caller named Molly describes struggling to perceive her current partner clearly, admitting that trauma from previous relationships led her to expect negativity and rejection. Only after working on healing did she begin to relate to her partner as he is, rather than through the lens of previous wounds.
Other examples highlight how individuals project their insecurities or desires for love onto partners who may not reciprocate these feelings, recognizing, in hindsight, that their yearnings shaped their interpretation of the relationship. In extreme cases, as with one caller whose insecure husband projected fears of abandonment, these projections manifest as false accusations and controlling behavior, fueling misunderstanding and relationship distress.
Projection often extends to predic ...
Projection in Relationships: Misperceptions From Projecting Feelings, Insecurities, and Values Onto Partners
Paul Eastwick explains that online dating apps create an environment where acceptance or rejection decisions are made primarily based on photos and brief profile information. When evaluating photographs, there is a high level of consensus about who is considered physically attractive—people tend to agree broadly about attractiveness from pictures. Many psychological studies confirm that individuals rated as more attractive in photos are also more likely to be predicted as romantically successful.
However, Eastwick emphasizes that this consensus on attractiveness decreases as people get to know each other in real life. Over time, greater acquaintance leads individuals to diverge widely in how attractive they find someone; a person rated as a "six" by consensus in a photograph might be regarded as a "three" by some acquaintances and a "nine" by others after personal interaction. This ...
Impact of Online Dating: How Apps Amplify Gender Differences and Create Unrealistic Expectations Compared To In-person Interactions
Caller #5, Linda, describes the process she and her husband undertook to address his habit of projecting thoughts and feelings onto her. Their ongoing efforts illustrate the benefits of clear communication, appreciation, reassurance, and compassion as antidotes to the distortions caused by projection in relationships.
Linda shares that she and her husband confront projections directly, engaging in open dialogue and regularly reminding each other of their true feelings. Ed Lemay notes that these check-ins and reminders improve accuracy in seeing each other and diminish the space in which projection can operate.
Linda and her husband use the phrase, “the story I’m telling myself is,” to surface their interpretations and check those stories with one another. This practice allows them to test assumptions against real intentions and quickly correct inaccuracies.
Linda explains that during her husband’s PTSD crisis, he projected his disappointment, self-hatred, and fear of abandonment onto her, believing she might leave him. This transparent approach revealed that many projections originated from past trauma rather than her actual words or actions.
On their psychologist’s advice, Linda’s husband placed notes around the house stating, “everything Linda does is because she loves me.” Lemay adds that such reminders give partners needed reassurance, which research shows helps counteract the negative impact of low self-esteem on relationship quality.
Lemay explains that insecurities often lead individuals to dismiss their partner’s expressions of love as insincere. Focusing deliberately on the reality and importance of these expressions helps push back against such dismissive interpretations.
Lemay also recommends cultivating gratitude for a partner’s qualities rather than idealizing ex-partners or imagining alternatives. Maintaining a balanced appreciation of strengths and flaws helps neutralize unhelpful comparisons and fosters relationship satisfaction and commitment.
Strengthening Relationships: Reducing Bias, Enhancing Communication, Creating Intimacy
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