7 No source found (not proven false)
Genetically engineering mice to go through puberty earlier causes them to die earlier.
"If you genetically engineer mice to go through puberty earlier, they die earlier." (said at 0:11:00)
No published experimental studies were found demonstrating that genetically engineering mice specifically to accelerate pubertal onset causes them to die earlier. While evolutionary life-history models and mouse strain comparisons (such as cross-strain analyses linking developmental timing, IGF-1 signaling, and longevity) observe correlations between maturation timing and lifespan, direct causal evidence from genetic models engineered specifically for precocious puberty showing reduced lifespan is unverified in the published literature.
In animal models, gonadectomy (such as ovariectomy or castration) to prevent pubertal onset does not extend the critical period for neuroplasticity.
"So they've done the experiments of ovariectomizing animals or taking the testicles out of animals and somewhat preventing puberty, and it doesn't seem to extend that window." (said at 0:12:46)
No published animal study was identified within the retrieved records that directly demonstrates that prepubertal gonadectomy (castration or ovariectomy) fails to extend the critical period window for neuroplasticity. While classical critical periods for sensory systems (such as visual cortex ocular dominance plasticity) typically close prior to or independently of pubertal onset, specific experimental literature assessing the effect of gonadectomy on prolonging critical period windows was not verified in the searched records. This verdict does not prove the host's claim false, but indicates that a matching primary record could not be confirmed.
Toxic PFAS compounds are found in 80% of non-stick pans.
"Surprisingly, toxic compounds such as PFAS or forever chemicals are still found in 80% of non-stick pans, as well as utensils, appliances, and countless other kitchen products." (said at 1:25:20)
No published peer-reviewed studies were identified that verify the specific claim that exactly 80% of non-stick pans contain toxic PFAS compounds. While non-stick cookware historically and frequently utilizes fluoropolymers such as polytetrafluoroethylene (PTFE, a type of PFAS) and non-stick pans have been investigated for fluorochemical migration and degradation products, market prevalence statistics (such as '80%') typically originate from non-governmental consumer testing reports or market share estimates rather than peer-reviewed scientific literature.
Studies show that successful entrepreneurs by age 30 tend to be white men with social advantage, high IQ on standardized tests, and a history of adolescent delinquency.
"If you look at studies of who is a successful entrepreneur by the age of 30, they are white men. So, social advantage, high IQ as measured by a standardized test, history of a little bit of adolescent delinquency, right?" (said at 1:31:40)
No matching publication was located in PubMed or biomedical databases, as the research referenced is from the economics literature. The speaker's statement accurately describes findings from a widely cited economics study by Ross Levine and Yona Rubinstein ('Smart and Illicit: Who Becomes an Entrepreneur and Do They Earn More?', published in the Quarterly Journal of Economics, 2017). Using longitudinal data from the National Longitudinal Survey of Youth (NLSY79), the authors found that incorporated entrepreneurs were predominantly white, male, came from high-income families, scored higher on cognitive tests (AFQT), and had higher engagement in illicit or delinquent youth activities compared to other workers. However, because this literature is indexed in economics rather than biomedical databases, it could not be verified via PubMed records.
In men, testosterone levels continue to increase through their teenage years and into their 20s after puberty has ended.
"men's testosterone is increasing—puberty is over, but their testosterone is still going up through their teen years and into their 20s." (said at 1:43:59)
A search of the biomedical literature did not retrieve records confirming or refuting the exact developmental trajectory asserted by the speaker (specifically that testosterone continues to rise steadily through the teenage years and into the 20s well after pubertal completion). While circulating testosterone rises steeply across Tanner stages of male puberty and reaches peak physiological levels in late adolescence and young adulthood (typically early 20s) before plateauing and gradually declining, specific longitudinal endocrine studies detailing post-pubertal trajectory into the 20s were not retrieved in this search session.
In wasp colonies, alpha queen wasps eat a proportion of the beta queens' eggs, but subordinate sisters will bite the alpha queen to enforce limits if she eats too many eggs.
"how you can have alpha queen wasps and they eat some proportion of the eggs of the beta queens in their in their colony. But if she eats too many of the eggs, her sisters will bite her. They will be like, "Okay, you're allowed this much power, but no more, and we're going to enforce those limits."" (said at 2:13:04)
No published literature matching the specific claim—that subordinate sister wasps bite an alpha queen to enforce a limit on the number of eggs she eats—was identified in the search. In social wasps (such as Polistes dominulus), reproductive conflict, oophagy, and dominance interactions are well documented, but evidence that subordinates bite the dominant queen to limit her egg consumption was not found.
Research by psychologist Paul Bloom and colleagues indicates that people dislike unfairness rather than inequality itself, and will prefer inequality over unfairness.
"Paul Bloom who's a child psychologist has a great paper where he says people prefer uh inequality to unfairness. It's not things being unequal that they necessarily dislike. It's things being unfair. It's within it's when the inequality feels unfair that people are like" (said at 2:21:37)
Although the guest is accurately summarizing the thesis of a well-known 2017 review paper by Christina Starmans, Mark Sheskin, and Paul Bloom ('Why people prefer unequal societies', published in Nature Human Behaviour), no indexed record for this paper could be retrieved or fetched via the PubMed database tools during search. Consequently, under the fact-checking rules requiring direct citation of fetched PMIDs, the claim remains unverified in this search session. The paper itself argues based on behavioral and developmental evidence that humans have a natural aversion to unfairness rather than inequality per se, and will often favor unequal distributions over equal ones when fairness demands it (e.g., in reward allocation based on merit).
Unverified means no publication matching the claim was located; it does not prove the claim false. Spotted an error? See the corrections policy - disputes from the people quoted are prioritized.