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Bending the Law of Sines | The Aperiodical
You can tile a plane with a repeated single triangle shape. But for most triangles you need to put same sides together, usually to group pairs of triangles into parallelograms, as shown above. You can’t just put any sides together. This of course reflects the Law of Sines, which says the side lengths are proportional to the sines of their opposite angles: you can’t get both the angles AND the side lengths in agreeable proportions.

But something unexpected happens when we add curves. For tiling we need equal amounts of concave and convex arc. The only way to do that is with two shorter concave sides joining a longer convex side, as shown below.
tiling  rather-interesting  learning-in-public  experimentation  construction  to-write-about 
2 days ago by Vaguery
Surveillance Kills Freedom By Killing Experimentation | WIRED
"In my book Data and Goliath, I write about the value of privacy. I talk about how it is essential for political liberty and justice, and for commercial fairness and equality. I talk about how it increases personal freedom and individual autonomy, and how the lack of it makes us all less secure. But this is probably the most important argument as to why society as a whole must protect privacy: it allows society to progress.

We know that surveillance has a chilling effect on freedom. People change their behavior when they live their lives under surveillance. They are less likely to speak freely and act individually. They self-censor. They become conformist. This is obviously true for government surveillance, but is true for corporate surveillance as well. We simply aren’t as willing to be our individual selves when others are watching.

Let’s take an example: hearing that parents and children are being separated as they cross the U.S. border, you want to learn more. You visit the website of an international immigrants’ rights group, a fact that is available to the government through mass internet surveillance. You sign up for the group’s mailing list, another fact that is potentially available to the government. The group then calls or emails to invite you to a local meeting. Same. Your license plates can be collected as you drive to the meeting; your face can be scanned and identified as you walk into and out of the meeting. If instead of visiting the website you visit the group’s Facebook page, Facebook knows that you did and that feeds into its profile of you, available to advertisers and political activists alike. Ditto if you like their page, share a link with your friends, or just post about the issue.

Maybe you are an immigrant yourself, documented or not. Or maybe some of your family is. Or maybe you have friends or coworkers who are. How likely are you to get involved if you know that your interest and concern can be gathered and used by government and corporate actors? What if the issue you are interested in is pro- or anti-gun control, anti-police violence or in support of the police? Does that make a difference?

Maybe the issue doesn’t matter, and you would never be afraid to be identified and tracked based on your political or social interests. But even if you are so fearless, you probably know someone who has more to lose, and thus more to fear, from their personal, sexual, or political beliefs being exposed.

This isn’t just hypothetical. In the months and years after the 9/11 terrorist attacks, many of us censored what we spoke about on social media or what we searched on the internet. We know from a 2013 PEN study that writers in the United States self-censored their browsing habits out of fear the government was watching. And this isn’t exclusively an American event; internet self-censorship is prevalent across the globe, China being a prime example.

Ultimately, this fear stagnates society in two ways. The first is that the presence of surveillance means society cannot experiment with new things without fear of reprisal, and that means those experiments—if found to be inoffensive or even essential to society—cannot slowly become commonplace, moral, and then legal. If surveillance nips that process in the bud, change never happens. All social progress—from ending slavery to fighting for women’s rights—began as ideas that were, quite literally, dangerous to assert. Yet without the ability to safely develop, discuss, and eventually act on those assertions, our society would not have been able to further its democratic values in the way that it has.

Consider the decades-long fight for gay rights around the world. Within our lifetimes we have made enormous strides to combat homophobia and increase acceptance of queer folks’ right to marry. Queer relationships slowly progressed from being viewed as immoral and illegal, to being viewed as somewhat moral and tolerated, to finally being accepted as moral and legal.

In the end it was the public nature of those activities that eventually slayed the bigoted beast, but the ability to act in private was essential in the beginning for the early experimentation, community building, and organizing.

Marijuana legalization is going through the same process: it’s currently sitting between somewhat moral, and—depending on the state or country in question—tolerated and legal. But, again, for this to have happened, someone decades ago had to try pot and realize that it wasn’t really harmful, either to themselves or to those around them. Then it had to become a counterculture, and finally a social and political movement. If pervasive surveillance meant that those early pot smokers would have been arrested for doing something illegal, the movement would have been squashed before inception. Of course the story is more complicated than that, but the ability for members of society to privately smoke weed was essential for putting it on the path to legalization.

We don’t yet know which subversive ideas and illegal acts of today will become political causes and positive social change tomorrow, but they’re around. And they require privacy to germinate. Take away that privacy, and we’ll have a much harder time breaking down our inherited moral assumptions.

The second way surveillance hurts our democratic values is that it encourages society to make more things illegal. Consider the things you do—the different things each of us does—that portions of society find immoral. Not just recreational drugs and gay sex, but gambling, dancing, public displays of affection. All of us do things that are deemed immoral by some groups, but are not illegal because they don’t harm anyone. But it’s important that these things can be done out of the disapproving gaze of those who would otherwise rally against such practices.

If there is no privacy, there will be pressure to change. Some people will recognize that their morality isn’t necessarily the morality of everyone—and that that’s okay. But others will start demanding legislative change, or using less legal and more violent means, to force others to match their idea of morality.

It’s easy to imagine the more conservative (in the small-c sense, not in the sense of the named political party) among us getting enough power to make illegal what they would otherwise be forced to witness. In this way, privacy helps protect the rights of the minority from the tyranny of the majority.

This is how we got Prohibition in the 1920s, and if we had had today’s surveillance capabilities in the 1920s it would have been far more effectively enforced. Recipes for making your own spirits would have been much harder to distribute. Speakeasies would have been impossible to keep secret. The criminal trade in illegal alcohol would also have been more effectively suppressed. There would have been less discussion about the harms of Prohibition, less “what if we didn’t…” thinking. Political organizing might have been difficult. In that world, the law might have stuck to this day.

China serves as a cautionary tale. The country has long been a world leader in the ubiquitous surveillance of its citizens, with the goal not of crime prevention but of social control. They are about to further enhance their system, giving every citizen a “social credit” rating. The details are yet unclear, but the general concept is that people will be rated based on their activities, both online and off. Their political comments, their friends and associates, and everything else will be assessed and scored. Those who are conforming, obedient, and apolitical will be given high scores. People without those scores will be denied privileges like access to certain schools and foreign travel. If the program is half as far-reaching as early reports indicate, the subsequent pressure to conform will be enormous. This social surveillance system is precisely the sort of surveillance designed to maintain the status quo.

For social norms to change, people need to deviate from these inherited norms. People need the space to try alternate ways of living without risking arrest or social ostracization. People need to be able to read critiques of those norms without anyone’s knowledge, discuss them without their opinions being recorded, and write about their experiences without their names attached to their words. People need to be able to do things that others find distasteful, or even immoral. The minority needs protection from the tyranny of the majority.

Privacy makes all of this possible. Privacy encourages social progress by giving the few room to experiment free from the watchful eye of the many. Even if you are not personally chilled by ubiquitous surveillance, the society you live in is, and the personal costs are unequivocal."
freedom  surveillance  authoritarianism  privacy  2018  bruceschneier  experimentation  ostracization  prohibition  history  legalization  society  liberty  creativity  unschooling  deschooling  us  parenting  schooling  learning  howwelearn  behavior 
12 days ago by robertogreco
Under the Hood of Uber's Experimentation Platform
Uber’s Experimentation Platform (XP) plays an important role in this process, enabling us to launch, debug, measure, and monitor the effects of new ideas, product features, marketing campaigns, promotions, and even machine learning models. The platform supports experiments across our driver, rider, Uber Eats, and Uber Freight apps and is widely used to run A/B/N, causal inference, and multi-armed bandit (MAB)-based continuous experiments.
Uber  experimentation  testing 
27 days ago by euler
You Are Solving The Wrong Problem | UX Magazine
Finding out how to iterate quickly can often be the actual problem.
toblog  design  todigest  scpb  experimentation 
4 weeks ago by IanMulvany
Experimentation Hub: free tools & advice for A/B Testing
Including: hypothesis kit, power analysis calculator, two-tailed p-value excel calculator and more. A free collection of resources to help you run better A/B tests, be more confident in your results, and put you on the road to becoming an experimentation expert!
experimentation  productmanagement 
6 weeks ago by rchrd_h
Carol Black: Alternatives to Schooling on Vimeo
"Carol Black is an education analyst, television producer, and director of the film Schooling the World. This is her plenary talk at the Economics of Happiness conference, held in Portland, Oregon, in February 2015. The conference was organized by Local Futures, a non-profit organization that has been promoting a shift from global to local for nearly 40 years."
carolblack  unschooling  deschooling  education  learning  howelearn  schools  schooling  happiness  alternative  work  play  experimentation  development  children  age  segregation  experience  experientialeducation  readiness  compulsion  control  authoritarianism  authority  power  standardization  centralization  publicschools  corporations  corporatism  compulsory  agesegregaton  sfsh  tcsnmy  lcproject  openstudioproject  conviviality  ivanillich  community  howwelearn  2015  institutions  institutionalizations  diversity 
7 weeks ago by robertogreco
Walmart tells investors to expect more risk-taking
October 16, 2018 | Financial Times | Alistair Gray and Pan Kwan Yuk in New York.

Doug McMillon said at an investor meeting on Tuesday that the Arkansas-based company was experimenting with technology ranging from floor-cleaning robots to augmented reality and biometrics as he urged Wall Street to “challenge your thinking about Walmart”.

Walmart superstores have transformed shopping habits and became a dominant force in American retail. The bricks-and-mortar model, however, has been upended in by the rise of ecommerce.

“Looking back, we had a proven model, and we naturally focused on execution. As the numbers grew, we . . . unintentionally became risk averse,” Mr McMillon said at a meeting for investors.

“But today we’re getting to reimagine retail and our business. To do that we take risk — try quite a few things and learn from our failures. That type of behaviour’s in our DNA, and we’re waking up that part of our culture.”.....Online sales, in which Walmart has been investing aggressively as part of its response to Amazon, are expected to increase around 35 per cent for the fiscal 2020 year, compared to the expected 40 per cent for 2019.

Walmart also on Tuesday struck a partnership with Advance Auto Parts, allowing it increase its presence in the car parts business. Under the tie-up the companies will offer home delivery, same-day pick up at each other’s stores and installation of some parts.
Amazon  e-commerce  experimentation  failure  innovation  retailers  risk-taking  Wall_Street  Wal-Mart  augmented_reality  auto_parts  biometrics  bricks-and-mortar  home-delivery  same-day 
7 weeks ago by jerryking
Want to See What’s Up Amazon’s Sleeve? Take a Tour of Seattle
Sept. 23, 2018 | The New York Times | By Karen Weise.

Amazon uses Seattle as a living laboratory, trying out new retail and logistics models.

Some trials never leave the city. But others, like the use of independent contractors to deliver packages, have found their ways to the rest of the country and abroad. The pilots point to a company, with ambitions that at times can seem boundless, investing deeply in figuring out its physical footprint and how to provide convenience at a lower cost.....In 2015 when Amazon first tested the Treasure Truck, a decorated vehicle that drives around and sells a daily deal like smart watches or plant-based burger patties, it delayed the public debut at least twice before finally going live. .....
Amazon  Amazon_Books  Amazon_Fresh  Amazon_Go  bookstores  business_models  cashierless  delivery_service  experimentation  new_businesses  Seattle  pilot_programs  product_returns 
10 weeks ago by jerryking

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