About jukka aakula

Interested in web services, evolution, antropology, evolutionary psychology, economics, religion, history

Public Notes


Recent Activity

  • jukka shared from Ultrasociety: How 10,000 Years of War Made Humans the Greatest Cooperators on Earth by Peter Turchin
    A different perspective, one rooted in the new discipline of Cultural Evolution, disagrees. Yes, agriculture is a necessary condition for the evolution of complex societies. But it is not enough. The problem is that vital institutions, such as bureaucracies and organized religion, and constraints that compel a ruling elite to promote the common good, are all costly. How could these institutions come about in spite of such costs? The theory of cultural multilevel selection says that this evolution is only possible when societies compete against each other, so that those lacking the right institutions...
    Note: simple as that. how cultural evolution happens
  • jukka shared from The Secret of Our Success: How Culture Is Driving Human Evolution, Domesticating Our Species, and Making Us Smarter by Joseph Henrich
    Because most Neanderthal groups possess a toolkit substantially less complex than the more modern-looking African intruders (our ancestors), the assumption has often been that Neanderthals suffered some innate cognitive deficits relative to the African immigrants. This has been argued consistently, despite the fact that Neanderthal brains were as big, or bigger, than our brains.17 In primates, the strongest predictor of cognitive abilities across species is overall brain size.18 Consequently, it’s not implausible that we were dumber than the bigger-brained Neanderthals. Researchers, however,...
    Note: Neandertals has bigger brains but were less socially interconnected. Had smaller collective brains
  • jukka shared from The Secret of Our Success: How Culture Is Driving Human Evolution, Domesticating Our Species, and Making Us Smarter by Joseph Henrich
    The impact of this culturally transmitted know-how about fire and cooking has had such an impact on our species’ genetic evolution that we are now, essentially, addicted to cooked food. Wrangham reviewed the literature on the ability of humans to survive by eating only raw foods. His review includes historical cases in which people had to survive without cooking, as well as studies of modern fads, such as the raw foods movement, The long and short of all this is that it’s very difficult to survive for months without cooking. Raw-foodists are thin and often feel hungry. Their body fat drops...
    Note: We are dependent on cooking? It is part of our Environment of Evolutionary Adaptedness.
  • jukka shared from The Secret of Our Success: How Culture Is Driving Human Evolution, Domesticating Our Species, and Making Us Smarter by Joseph Henrich
    By exploiting large data sets of students, courses, and instructors, my UBC colleague Florian Hoffman and his collaborators unearthed real-world evidence consistent with the experimental findings discussed above: being taught by instructors whom you match on ethnicity/race reduces your dropout rate and raises your grades. In fact, for African-American students at a community college, being taught by an African-American instructor reduced class dropout rates by 6 percentage points and increased the fraction attaining a B or better by 13 percentage points. Similarly, using data from freshman (first-years)...
    Note: esim. pojat oppivat helpommin miesopettajilta. Ihmisella taipumus ottaa mallia samanlaisilta.
  • jukka shared from Violence and Social Orders: A Conceptual Framework for Interpreting Recorded Human History by Douglass C. North, John Joseph Wallis, Barry R. Weingast
    A final aspect of all open access orders is Schumpeter's notion of creative destruction, one of the most powerful descriptions of a competitive, open access economy. When Schumpeter wrote Capitalism, Socialism, and Democracy in the early 1940s, the economic theory of perfect competition among atomistic firms (i.e., firms too small to have market power) had come under sustained attack as unrealistic. Large and powerful economic organizations dominated the new economy, and their behavior did not match the textbooks. Despite this dominance, the economy produced historically unprecedented, sustained...
    Note: Schumpeter realistically describes capitalism of year 1940 as of year 2015
(Helsinki, Finland)
jukka aakula