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juliusbeezer : evoscidebate   7

Schmidt sting pain index - Wikipedia
The Schmidt sting pain index arose from the pursuit of a larger hypothesis: that the evolution of sociality in Hymenoptera was dependent on the evolution of venom that was both painful and toxic.[16] Pain is an advertisement of damage in the body, but molecules that produce pain and those that are toxic, and actively cause damage, are not the same. Although the painful signal acts as a deterrent, intelligent predators will learn the dishonesty of this signal with repeated exposure – that there is no real damage being done.[17] For the early Hymenoptera that were primarily solitary, the pain alone would allow them the chance to escape. Furthermore, solitary insects do not provide a high energy reward for predators, and therefore predators do not expend significant effort to hunt them. However, with the evolution of sociality where many Hymenoptera cluster together in colonies, nests become a nutritionally rich and therefore worthwhile target.[18] If there were no defenses, predators would devour the defenseless society, leaving few surviving individuals and eliminating social reproduction.[17] Sociality would therefore not be beneficial. In order for sociality to evolve, Hymenoptera needed a defense beyond a painful sting to protect their whole colony. Their sting was an advertisement of damage, and toxicity evolved as its truth.
evoscidebate  insects  medicine  psychology 
january 2018 by juliusbeezer
Neuralink and the Brain's Magical Future - Wait But Why
"Elon Musk started Neuralink to accelerate our pace into the Wizard Era—into a world where he says that “everyone who wants to have this AI extension of themselves could have one, so there would be billions of individual human-AI symbiotes who, collectively, make decisions about the future.” A world where AI really could be of the people, by the people, for the people."

[He wants to implant chips in your brain and join the AI-enabled fourth planet (I didn't get this bit, I was too worn out skimming through the high school history and biology for idiocy, did find some)

Can I short neuralink with a Post Office savings account?

Where do I sign to have the chip implanted?

Canny even be arsed following up the obligatory science fiction references: "Iain Banks’ Culture series—a massless, volumeless, whole-brain interface that can be teleported into the brain." and "Ramez Naam, writer of the popular Nexus Trilogy, a series all about the future of BMIs,"

Good point about existing bandwidth of electrodes, but it's not at all clear what they plan to hook up to... and therein lies the "still 50 years-offness" of the whole thing cf nuclear fusion

So meh! Hats off for the effusiveness of the effusion, which will certainly fool millions]
agnotology  spectacle  business  psychology  history  evoscidebate 
april 2017 by juliusbeezer
Charles Darwin's reading habits - Marginal REVOLUTION
Search in an environment with an uncertain distribution of resources involves a trade-off between exploitation of past discoveries and further exploration. This extends to information foraging, where a knowledge-seeker shifts between reading in depth and studying new domains. To study this decision-making process, we examine the reading choices made by one of the most celebrated scientists of the modern era: Charles Darwin. From the full-text of books listed in his chronologically-organized reading journals, we generate topic models to quantify his local (text-to-text) and global (text-to-past) reading decisions using Kullback-Liebler Divergence, a cognitively-validated, information-theoretic measure of relative surprise. Rather than a pattern of surprise-minimization, corresponding to a pure exploitation strategy, Darwin’s behavior shifts from early exploitation to later exploration, seeking unusually high levels of cognitive surprise relative to previous eras. These shifts, detected by an unsupervised Bayesian model, correlate with major intellectual epochs of his career as identified both by qualitative scholarship and Darwin’s own self-commentary. Our methods allow us to compare his consumption of texts with their publication order. We find Darwin’s consumption more exploratory than the culture’s production, suggesting that underneath gradual societal changes are the explorations of individual synthesis and discovery. Our quantitative methods advance the study of cognitive search through a framework for testing interactions between individual and collective behavior and between short- and long-term consumption choices. This novel application of topic modeling to characterize individual reading complements widespread studies of collective scientific behavior.
screwmeneutics  history  sciencepublishing  science  evoscidebate 
december 2016 by juliusbeezer
The man with 1000 children: the limit of male fertility - Neuroanthropology
The case of Moulay Ismael is important in this context because he seems to sketch out the limits of male fertility in practical terms and thus at least one of the limits of anisogamy as a theoretical explanation.
sex  evoscidebate 
june 2015 by juliusbeezer
The Imaginary Journal of Poetic Economics: Illustrating of the potential for savings with a global shift to open access
Your PoV may differ from Morrison's, but she's broadly right on the big picture I think.
(and a credited error correction!)
evoscidebate  dccomment 
march 2012 by juliusbeezer
The Imaginary Journal of Poetic Economics: economics
Those (eg ) seeking a handle on economics of vs trad publishing might start here:
evoscidebate  oa 
march 2012 by juliusbeezer

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