William Costello

William Costello

Person

William Costello is a psychology researcher and PhD student at the University of Texas at Austin, specialising in individual differences and evolutionary psychology. He is known for research on human mating preferences and the information people use to assess mating-related risks.

What William Costello has said on podcasts

22 statements

  1. on Sexualized advertisingPositiveSep 19, 2026· Modern Wisdom

    Sexualized advertising helps sell products, especially to young male audiences.

    sex sells

    Listen at 3:02

    Open the episode · Why Sydney Sweeney Has Two Big Targets On Her Chest - William Costello - #1152
  2. on Sydney Sweeney advertisementNegativeSep 19, 2026· Modern Wisdom

    Sydney Sweeney’s advertisement does not undo Katie Taylor’s sporting achievements.

    I don't think her achievements are undone now by Sydney Sweeney. Like, that's just a preposterous claim.

    Listen at 10:21

    Open the episode · Why Sydney Sweeney Has Two Big Targets On Her Chest - William Costello - #1152
  3. on Sydney SweeneyNegativeSep 19, 2026· Modern Wisdom

    Sweeney’s overt appeal to male attention signals a threat to other women.

    that just cues a threat to other women

    Listen at 15:31

    Open the episode · Why Sydney Sweeney Has Two Big Targets On Her Chest - William Costello - #1152
  4. on Women’s sexual normsNeutralSep 19, 2026· Modern Wisdom

    Women collectively police sexual norms and influence the social cost of sex.

    women kind of as a group they're kind of like the cartel with the cost of sex

    Listen at 19:42

    Open the episode · Why Sydney Sweeney Has Two Big Targets On Her Chest - William Costello - #1152
  5. on Sex ratiosNeutralSep 19, 2026· Modern Wisdom

    Male scarcity is associated with more promiscuous short-term mating strategies.

    When men are scarce, men and women shift to a more promiscuous short-term mating strategy.

    Listen at 21:51

    Open the episode · Why Sydney Sweeney Has Two Big Targets On Her Chest - William Costello - #1152
  6. on Sex ratiosPositiveSep 19, 2026· Modern Wisdom

    Female scarcity increases women’s mating-market bargaining power and encourages male commitment.

    When women are scarce and they're the rare commodity, they have greater bargaining power in that sex ratio mating ecology, then men become more commitment-oriented.

    Listen at 21:57

    Open the episode · Why Sydney Sweeney Has Two Big Targets On Her Chest - William Costello - #1152
  7. on Women’s achievement signalingNeutralSep 19, 2026· Modern Wisdom

    Women tend to downplay achievements and avoid taking individual credit.

    Women are uneasy about taking credit for a victory. They prefer to play down their achievements

    Listen at 23:30

    Open the episode · Why Sydney Sweeney Has Two Big Targets On Her Chest - William Costello - #1152
  8. on Female coalitional psychologyNegativeSep 19, 2026· Modern Wisdom

    Female coalitions tend to punish members who violate group norms.

    They don't like norm violators, and that's what you're seeing here.

    Listen at 30:43

    Open the episode · Why Sydney Sweeney Has Two Big Targets On Her Chest - William Costello - #1152
  9. on Heterosexual male sexualityNegativeSep 19, 2026· Modern Wisdom

    Heterosexual male sexuality is judged more morally suspicious than other sexualities.

    Anything that celebrates heterosexual male sexuality is morally suspect in a way that other sexuality isn't.

    Listen at 33:46

    Open the episode · Why Sydney Sweeney Has Two Big Targets On Her Chest - William Costello - #1152
  10. on SexualizationMixedSep 19, 2026· Modern Wisdom

    Men generally experience sexualization as less problematic than women do.

    being sexualized is not as big of a problem to men as it is for women

    Listen at 36:36

    Open the episode · Why Sydney Sweeney Has Two Big Targets On Her Chest - William Costello - #1152
  11. on Male sexualizationPositiveSep 19, 2026· Modern Wisdom

    Men may interpret sexualized male physiques as motivating rather than demeaning.

    Men see it as kind of motivating

    Listen at 36:59

    Open the episode · Why Sydney Sweeney Has Two Big Targets On Her Chest - William Costello - #1152
  12. on Women with predominantly male friendshipsNegativeSep 19, 2026· Modern Wisdom

    Women mistrust women with predominantly male friendships because motives may seem mating-related.

    women mistrust her because they doubt the reasons for her doing that

    Listen at 37:28

    Open the episode · Why Sydney Sweeney Has Two Big Targets On Her Chest - William Costello - #1152
  13. on Mate poachingNegativeSep 19, 2026· Modern Wisdom

    Mate poachers commonly enter relationships by first establishing friendship.

    one of the top tactics that mate poachers use is to infiltrate the relationship through friendship first

    Listen at 38:27

    Open the episode · Why Sydney Sweeney Has Two Big Targets On Her Chest - William Costello - #1152
  14. on Breast size preferencesNeutralSep 19, 2026· Modern Wisdom

    Research has mixed findings about the breast size considered optimal by men.

    very mixed evidence for the size that's deemed optimal

    Listen at 42:06

    Open the episode · Why Sydney Sweeney Has Two Big Targets On Her Chest - William Costello - #1152
  15. on Breast size preferencesPositiveSep 19, 2026· Modern Wisdom

    Short-term-mating-oriented men tend to prioritize larger breasts.

    short-term mating-oriented men prioritize big boobs

    Listen at 43:12

    Open the episode · Why Sydney Sweeney Has Two Big Targets On Her Chest - William Costello - #1152
  16. on Large-breasted womenNegativeSep 19, 2026· Modern Wisdom

    Women derogate large-breasted women more often than small-breasted women.

    women derogate big-boobed women as well, a lot more than small-boobed women

    Listen at 43:21

    Open the episode · Why Sydney Sweeney Has Two Big Targets On Her Chest - William Costello - #1152
  17. on Male physical attractivenessPositiveSep 19, 2026· Modern Wisdom

    Men’s physical attractiveness is generally more attainable through effort than women’s beauty.

    men's attractiveness on most metrics is attainable

    Listen at 50:25

    Open the episode · Why Sydney Sweeney Has Two Big Targets On Her Chest - William Costello - #1152
  18. on Female beautyNegativeSep 19, 2026· Modern Wisdom

    Women’s beauty has a more time-limited reproductive-value window than men’s attractiveness.

    women's Beauty is on a much more tight time clock

    Listen at 51:50

    Open the episode · Why Sydney Sweeney Has Two Big Targets On Her Chest - William Costello - #1152
  19. on Online gambling legalizationNegativeSep 19, 2026· Modern Wisdom

    Legalizing online gambling increases bankruptcy and debt among young men.

    Bankruptcy among young men goes way up and they go into way more debt

    Listen at 57:33

    Open the episode · Why Sydney Sweeney Has Two Big Targets On Her Chest - William Costello - #1152
  20. on Gambling problems among young menNegativeSep 19, 2026· Modern Wisdom

    Gambling problems are associated with suicidal thoughts and attempts among young men.

    30% of people who have a gambling problem, of men, young men who have gambling problems, have felt suicidal. And I think something like 13% have attempted suicide

    Listen at 58:03

    Open the episode · Why Sydney Sweeney Has Two Big Targets On Her Chest - William Costello - #1152
  21. on Modern institutionsNegativeSep 19, 2026· Modern Wisdom

    Modern institutions reward indirect female aggression more than direct male aggression.

    it actually kind of rewards the female style of aggression, uh, way more than the male style

    Listen at 1:02:57

    Open the episode · Why Sydney Sweeney Has Two Big Targets On Her Chest - William Costello - #1152
  22. on Gender comparisonsNeutralSep 19, 2026· Modern Wisdom

    Gender comparisons should be evaluated by specific domain rather than globally.

    the more appropriate level of analysis is find the domains or the specific context in which each sex has it bad or good

    Listen at 1:06:30

    Open the episode · Why Sydney Sweeney Has Two Big Targets On Her Chest - William Costello - #1152

Statements are attributed to the speaker as said on the episode and reflect their view at the time, not PodLume's. They are not advice.

1 episode featuring William Costello

What is PodLume?

PodLume turns podcasts into searchable knowledge. AI-decoded transcripts, identified guests and topics, smart highlights, and cross-show search across the world’s best conversations — all in your pocket.

William Costello | PodLume