On this, our 316th Evolutionary Lens livestream, we discuss health, science, and the Cartesian crisis as it relates to global events. First: a new paper finds that infection tends to lead to greater frailty in older people. This reverses the causality of Terrain Theory of Disease (frailty of the body leads to greater susceptibility of infection), and also provides support for a prediction made by Bret and his co-author Debbie Ciszek in the unpublished, longer version of their reserve capacity paper from 2002. Then: what we are seeing on our personal media feeds does not make us eye-witnesses to anything—not necessarily. Plato’s Cave of Mirrors means that we are all fed different media diets, and skills such as observation, discernment, and hypothesis generation, inherently fail when nobody can establish what is actually true. Recommendation: start comparing notes with other people as to what they are seeing, rather than what they think it means.
Our sponsors:
NOBS: NOBS is doing a nationwide rollout into 917 Target stores. The full list can be found on http://nobsroutines.com.
Caraway: Non-toxic, highly functional & beautiful cookware and bakeware. Save with Caraway’s cookware set, and visit http://Carawayhome.com/DH10 to for an additional 10% off your next purchase.
Xlear: Xylitol nasal spray that acts as prophylaxis against respiratory illnesses by reducing the stickiness of bacteria and viruses. Find Xlear online, or at your local pharmacy, grocery store, or natural products store.
Mentioned in this episode:
Ragusa et al 2026: https://academic.oup.com/biomedgerontology/advance-article-abstract/doi/10.1093/gerona/glag043/8497853
Gavazzi & Krause 2002: https://www.thelancet.com/journals/laninf/article/PIIS1473-3099(02)00437-1/fulltext
New York Magazine article on Casey Means: https://nymag.com/intelligencer/article/casey-means-and-the-myth-of-the-root-cause.html
Weinstein & Ciszek 2002: https://pubmed.ncbi.nlm.nih.gov/11909679/
Journalist Mizrahi on X (maybe): https://x.com/eliseevanews/status/2029700361297051829
Timestamps:
00:00:00 Holding Screen
00:07:05 Should You Sit Down for This?
00:11:42 Sponsor: NOBS
00:15:01 Sponsor: Caraway
00:18:11 Sponsor: Xlear
00:21:09 Do Infections in Youth Lead to Frailty When Older?
00:34:47 How This Supports Bret's Prediction
01:15:57 Bret Sets a Rule
01:16:20 Algorithms and the News
01:29:00 What Bret's Feed is Showing Him
02:00:58 Start Comparing Notes
We have "cartesian blinders being put on us so that we are trying to make sense out of scraps of information and hints." - @bretweinstein
WEINSTEIN: I mean, even if you have your villains who are engaged in the behavior that motivated this war in Iran, even if that's the story, presumably most of the people in the path of these ferocious bombings that he is describing are not deserving of going back to the Stone Age.
In fact, I distinctly remember him telling us that part of what we were up to was liberating the people of Iran from their tyrannical regime.
So if it's the tyrannical regime that justifies the ferocious bombing, then it's a tragedy that other people are going to be sent back to the Stone Ages with them. Right?
HEYING: It's it's not a narrative. It's an incoherent set of talking points.
WEINSTEIN: Yeah, it's a kind of cheerleading that is completely inappropriate from the perspective of the president.
Bret Weinstein discusses the Trump administrations "back to the stone age" recent remarks in the latest episode of The Evolutionary Lens, Episode 320 "Are we back in the stone age?" on DarkHorse.
Bret Weinstein explains, "If you stop businesses from starting here, and if you drive people so that they move elsewhere—even though it's difficult to do—then the point is the tax base dries up, which then forces you to become even more predatory for the people who stayed.
And that's really the thing, right? They're setting themselves up so that they have to go after more and more people, because the people who are starting new businesses are not going to do it here."
Bret speaks with John Cullen on the subject of the unanswered questions surrounding the assassination of Charlie Kirk and the 2017 Las Vegas shooting.
Youtube: https://youtu.be/7m31LcCTf10
Spotify: https://open.spotify.com/episode/0LEGBkh2yXDTl3QqU38Qid?si=KtxnJF0IT3i4XGhE_Sm0cg
Locals: https://darkhorse.locals.com/post/8227721/the-drone-hypothesis-john-cullen-on-darkhorse
Rumble: https://rumble.com/v7g2ny2-the-drone-hypothesis-john-cullen-on-darkhorse.html
Bret and Heather discuss new cats, fat bears, and overwhelmed frogs. The tilcayo, a newly named species of cat from Bolivia, is part of a group of New World “tiger cats” that live on the outskirts of the Amazon basin. We discuss Carnivoran relationships, cats more specifically, and what is known about the history and ecology of the tilcayo in particular.
Then: it’s fat bear week at Katmai National Park in Alaska, where grizzlies are fattening themselves on salmon for the Winter ahead; we discuss hibernation, reproductive diapause, and general chonkiness in bears.
Finally: female Cope’s gray treefrogs have a harder time choosing good mates when there’s a lot of noise, and when there are too many suitors—kind of like how women often make bad choices when confronted with chaos and wingmen.
Rumble: ...