nhaliday + guide   108

Introduction to Scaling Laws
https://betadecay.wordpress.com/2009/10/02/the-physics-of-scaling-laws-and-dimensional-analysis/
http://galileo.phys.virginia.edu/classes/304/scaling.pdf

Galileo’s Discovery of Scaling Laws: https://www.mtholyoke.edu/~mpeterso/classes/galileo/scaling8.pdf
Days 1 and 2 of Two New Sciences

An example of such an insight is “the surface of a small solid is comparatively greater than that of a large one” because the surface goes like the square of a linear dimension, but the volume goes like the cube.5 Thus as one scales down macroscopic objects, forces on their surfaces like viscous drag become relatively more important, and bulk forces like weight become relatively less important. Galileo uses this idea on the First Day in the context of resistance in free fall, as an explanation for why similar objects of different size do not fall exactly together, but the smaller one lags behind.
nibble  org:junk  exposition  lecture-notes  physics  mechanics  street-fighting  problem-solving  scale  magnitude  estimate  fermi  mental-math  calculation  nitty-gritty  multi  scitariat  org:bleg  lens  tutorial  guide  ground-up  tricki  skeleton  list  cheatsheet  identity  levers  hi-order-bits  yoga  metabuch  pdf  article  essay  history  early-modern  europe  the-great-west-whale  science  the-trenches  discovery  fluid  architecture  oceans  giants  tidbits 
august 2017 by nhaliday
The Internet Guide to Funding College and Section 529 College Savings Plans. Savingforcollege.com
https://twitter.com/toad_spotted/status/882227467263586304
https://archive.is/AYsxl
It looks to me like best thing to do is accrue home equity (since it's partly shielded for financial aid purposes)&otherwise grin n bear it
It's pretty obvious that the 521 break mostly is a transfer from federal government to colleges and state budgets not to rich households.
personal-finance  investing  parenting  higher-ed  money  temperance  howto  reference  database  guide  human-bean  multi  twitter  social  commentary  ratty  unaffiliated  housing  backup  org:fin 
april 2017 by nhaliday
Edge Master Class 2008 RICHARD THALER, SENDHIL MULLAINATHAN, DANIEL KAHNEMAN: A SHORT COURSE IN BEHAVIORAL ECONOMICS | Edge.org
https://twitter.com/toad_spotted/status/878990195953205248
huge popularity of "behavioral economics"among powerful people=largely excitement at how much more control they'd exert over stupider people

Time for Behavioral Political Economy? An Analysis of Articles in Behavioral Economics: https://papers.ssrn.com/sol3/papers.cfm?abstract_id=1846184
This study analyzes leading research in behavioral economics to see whether it contains advocacy of paternalism and whether it addresses the potential cognitive limitations and biases of the policymakers who are going to implement paternalist policies. The findings reveal that 20.7% of the studied articles in behavioral economics propose paternalist policy action and that 95.5% of these do not contain any analysis of the cognitive ability of policymakers. This suggests that behavioral political economy, in which the analytical tools of behavioral economics are applied to political decision-makers as well, would offer a useful extension of the research program.

https://www.bloomberg.com/view/articles/2017-07-19/some-countries-like-nudges-more-than-others
Research shows that Americans and conservatives can be less open to cues to change behavior.

It’s For Your Own Good!: http://www.nybooks.com/articles/2013/03/07/its-your-own-good/
- Cass Sunstein

Against Autonomy: Justifying Coercive Paternalism
by Sarah Conly
Cambridge University Press, 206 pp., $95.00

WHO NUDGES THE NUDGERS?: https://jacobitemag.com/2017/10/26/who-nudges-the-nudgers/
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february 2017 by nhaliday
How to do career planning properly - 80,000 Hours
- A/B/Z plans
- make a list of red flags and commit to reviewing at some point (and at some interval)
advice  strategy  career  planning  80000-hours  long-term  thinking  guide  summary  checklists  rat-pack  tactics  success  working-stiff  flexibility  wire-guided  progression  ratty 
november 2016 by nhaliday
Intermittent Fasting - Gwern.net
Our intuitive mental models are Aristotelian - strength or health are intrinsic qualities which can be developed by certain actions. But the reality is that exercise offers no intrinsic benefit to the body, no more than driving 10,000 miles in a car makes it more fuel-efficient or its tires more robust. Things wear down, in cars and cells. So why is exercise recommended? Because of the biological response to the damage caused by the exercise. Chemical pathways are activated, secretions unleashed, formerly silenced genes suddenly start expressing themselves, and things happen. Chemical cascades can be modified or interrupted by other chemicals, of course. We see proof of this in startling studies, like the consumption of antioxidants destroying the health benefits of exercise; why do antioxidants do that? Because the damage caused by exercise takes, in part, the form of oxidants, and the oxidants trigger some of those chemical pathways; the antioxidants neutralize & eliminate the oxidants, and so those pathways are muted or suppressed.

So much for exercise. Something similar is theorized about the much ballyhooed caloric restriction. It is not the number of calories that has any intrinsic meaning, which finesses any law of physics to enable greater longevity - it is the body’s reactions to the restriction that matters, the changing levels of sirtuin proteins. (Why would evolution not make this reaction the default reaction and would permit the organism to die before it absolutely had to? There are a number of models where aging helps genetic fitness, actually; just another reminder that Nature does not have our best interests at heart.) Presumably some of the pathways could be directly controlled by injecting additional enzymes even as calorie consumption remains intact, and for that reason a number of biotech/pharmacorps have been interested in the sirtuins and other chemicals linked to caloric restriction. All that matters is that the pathways get triggered. A little like a computer - it doesn’t care what a command or file means, it just cares whether the input satisfies whatever entirely arbitrary (from its point of view) criteria the computer holds at that moment.
longevity  health  food  analysis  gwern  aging  ratty  cardio  c:**  nutrition  fitsci  faq  diet  metabolic  chart  guide 
july 2016 by nhaliday
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