nhaliday + minimum-viable   36

Edge.org: 2017 : WHAT SCIENTIFIC TERM OR CONCEPT OUGHT TO BE MORE WIDELY KNOWN?
highlights:
- the genetic book of the dead [Dawkins]
- complementarity [Frank Wilczek]
- relative information
- effective theory [Lisa Randall]
- affordances [Dennett]
- spontaneous symmetry breaking
- relatedly, equipoise [Nicholas Christakis]
- case-based reasoning
- population reasoning (eg, common law)
- criticality [Cesar Hidalgo]
- Haldan's law of the right size (!SCALE!)
- polygenic scores
- non-ergodic
- ansatz
- state [Aaronson]: http://www.scottaaronson.com/blog/?p=3075
- transfer learning
- effect size
- satisficing
- scaling
- the breeder's equation [Greg Cochran]
- impedance matching

soft:
- reciprocal altruism
- life history [Plomin]
- intellectual honesty [Sam Harris]
- coalitional instinct (interesting claim: building coalitions around "rationality" actually makes it more difficult to update on new evidence as it makes you look like a bad person, eg, the Cathedral)
basically same: https://twitter.com/ortoiseortoise/status/903682354367143936

more: https://www.edge.org/conversation/john_tooby-coalitional-instincts

interesting timing. how woke is this dude?
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may 2017 by nhaliday
Vegetables | Examine.com
I really wonder if eating 2 servings of Brassica, 2 servings of the Onion family, 2 servings of Garlic, 2 servings of mushrooms, and 2 'other' plants (dark berries?) is as magical as I am imagining it right now. You pretty much have a high dose of everything.
org:health  top-n  links  health  nutrition  diet  fitsci  low-hanging  prepping  metabolic  minimum-viable 
may 2017 by nhaliday
Whole Health Source: The Potato Diet
1. Potatoes have a low calorie density and a high satiety value per calorie.
2. Eating a diet that is composed almost exclusively of one food is low in reward, low-moderate palatability, low in variety, and has a high sensory-specific satiety. Even if you dress up your potatoes as well as you can, you're still eating potatoes. This tends to reduce calorie intake.
3. Potatoes are nutritious enough (including complete protein) that they can be the sole source of calories for an extended period of time. However, they are not a complete source of all micronutrients and deficiencies will eventually arise.
diet  nutrition  food  rhetoric  analysis  models  taubes-guyenet  org:health  health  obesity  fitsci  prepping  minimum-viable  efficiency 
march 2017 by nhaliday
Bestiary of Behavioral Economics/Trust Game - Wikibooks, open books for an open world
In the trust game, like the ultimatum game and the dictator game, there are two participants that are anonymously paired. Both of these individuals are given some quantity of money. The first individual, or player, is told that he must send some amount of his money to an anonymous second player, though the amount sent may be zero. The first player is also informed that whatever he sends will be tripled by the experimenter. So, when the first player chooses a value, the experimenter will take it, triple it, and give that money to the second player. The second player is then told to make a similar choice – give some amount of the now-tripled money back to the first player, even if that amount is zero.

Even with perfect information about the mechanics of the game, the first player option to send nothing (and thus the second player option to send nothing back) is the Nash equilibrium for the game.

In the original Berg et al. experiment, thirty out of thirty-two game trials resulted in a violation of the results predicted by standard economic theory. In these thirty cases, first players sent money that averaged slightly over fifty percent of their original endowment.

Heritability of cooperative behavior in the trust game: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2268795/
- trust defined by the standard A->B->A trust game
- smallish h^2, small but nonzero shared environment, primarily non-shared environment (~70%)

The results of our mixed-effects Bayesian ACE analysis suggest that variation in how subjects play the trust game is partially accounted for by genetic differences (Tables 2 and ​and33 and Fig. 2). In the ACE model of trust, the heritability estimate is 20% (C.I. 3–38%) in the Swedish experiment and 10% (C.I. 4–21%) in the U.S. experiment. The ACE model of trust also demonstrates that environmental variation plays a role. In particular, unshared environmental variation is a much more significant source of phenotypic variation than genetic variation (e2 = 68% vs. c2 = 12% in Sweden and e2 = 82% vs. c2 = 8% in the U.S.; P < 0.0001 in both samples). In the ACE model of trustworthiness, heritability (h2) generates 18% (C.I. 8–30%) of the variance in the Swedish experiment and 17% (C.I. 5–32%) in the U.S. experiment. Once again, environmental differences play a role (e2 = 66% vs. c2 = 17% in Sweden and e2 = 71% vs. c2 = 12% in the U.S.; P < 0.0001 in both samples).

Trust and Gender: An Examination of Behavior and Beliefs in the Investment Game: https://www.researchgate.net/publication/222329553_Trust_and_Gender_An_Examination_of_Behavior_and_Beliefs_in_the_Investment_Game
How does gender influence trust, the likelihood of being trusted and the level of trustworthiness? We compare choices by men and women in the Investment Game and use questionnaire data to try to understand the motivations for the behavioral differences. We find that men trust more than women, and women are more trustworthy than men. The relationship between expected return and trusting behavior is stronger among men than women, suggesting that men view the interaction more strategically than women. Women felt more obligated both to trust and reciprocate, but the impact of obligation on behavior varies.

Genetic Influences Are Virtually Absent for Trust: http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0093880
trust defined by poll

Over the past decades, numerous twin studies have revealed moderate to high heritability estimates for individual differences in a wide range of human traits, including cognitive ability, psychiatric disorders, and personality traits. Even factors that are generally believed to be environmental in nature have been shown to be under genetic control, albeit modest. Is such heritability also present in _social traits that are conceptualized as causes and consequences of social interactions_ or in other ways strongly shaped by behavior of other people? Here we examine a population-based sample of 1,012 twins and relatives. We show that the genetic influence on generalized trust in other people (trust-in-others: h2 = 5%, ns), and beliefs regarding other people’s trust in the self (trust-in-self: h2 = 13%, ns), is virtually absent. As test-retest reliability for both scales were found to be moderate or high (r = .76 and r = .53, respectively) in an independent sample, we conclude that all variance in trust is likely to be accounted for by non-shared environmental influences.

Dutch sample

Generalized Trust: Four Lessons From Genetics and Culture: http://journals.sagepub.com/doi/abs/10.1177/0963721414552473
We share four basic lessons on trust: (a) Generalized trust is more a matter of culture than genetics; (b) trust is deeply rooted in social interaction experiences (that go beyond childhood), networks, and media; (c) people have too little trust in other people in general; and (d) it is adaptive to regulate a “healthy dose” of generalized trust.

Trust is heritable, whereas distrust is not: http://www.pnas.org/content/early/2017/06/13/1617132114
Notably, although both trust and distrust are strongly influenced by the individual’s unique environment, interestingly, trust shows significant genetic influences, whereas distrust does not. Rather, distrust appears to be primarily socialized, including influences within the family.

[ed.: All this is consistent with my intuition that moral behavior is more subject to cultural/"free will"-type influences.]
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december 2016 by nhaliday

bundles : initpatterns

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