The magic Dunbar number: Why Communist societies and operating groups should be fewer than 150 people If you have plans to start a Communist society, it would behoove you to cap your group at 150 and cut yourself off from the rest of the world, because after that point, it becomes nearly impossibly for everyone to know who everyone else is while also understanding their interrelationships. You may not have heard about the Dunbar number, but in essence it is a “a theoretical cognitive limit to the number of people with whom one can maintain stable social relationship”. Developed by a fellow named Dunbar, as luck would have it, he came up with about 150 — but the number swings from 100 to 230 with 95% confidence intervals. Regardless of the exact number, we as humans are limited by our neocortex to hold a certain number of social relationships with any significance in our head at once. And to the main point: would this not argue for companies or operating groups to remain under 150 or 200 people? Pay attention to the tribes within your organization; understand the monkeysphere.
IfItWereMyHome.com Canada A land of vast distances and rich natural resources, Canada became a self-governing dominion in 1867 while retaining ties to the British crown. Economically and technologically the nation has developed in parallel with the US, its neighbor to the south across an unfortified border. 7 fascinating TED Talks on the benefits of gaming This weekend, hundreds of video games enthusiasts lined up in the cold, waiting 12 hours-plus to be the first to get their hands on Nintendo’s new console, the Wii U. And when the game Call of Duty: Black Ops was released in 2010, gamers around the world played it for more than 600 million hours in just the first 45 days. That is the equivalent of 68 years. While some people worry about the popularity of video games, in today’s talk, brain scientist Daphne Bavelier suggests that gaming may be far more beneficial than we think (in moderation) — even if the game is all about shooting up the enemy. “Most of you have thought, ‘Come on, can’t you do something more productive than shooting zombies?’
Human Brain Limits Twitter Friends to 150 Back in early 90s, the British anthropologist Robin Dunbar began studying the social groups of various kinds of primates. Before long, he noticed something odd. Primates tend to maintain social contact with a limited number of individuals within their group. But here’s the thing: primates with bigger brains tended to have a bigger circle of friends. Dunbar reasoned that this was because the number of individuals a primate could track was limited by brain volume. Then he did something interesting.
40 maps that explain the world Maps can be a remarkably powerful tool for understanding the world and how it works, but they show only what you ask them to. So when we saw a post sweeping the Web titled "40 maps they didn't teach you in school," one of which happens to be a WorldViews original, I thought we might be able to contribute our own collection. Some of these are pretty nerdy, but I think they're no less fascinating and easily understandable. The 20 most-watched TEDTalks (so far) Today, on the fifth birthday of TEDTalks video, we’re releasing a new list of the 20 most-watched TEDTalks over the past five years — as watched on all the platforms we track: TED.com, YouTube, iTunes, embed and download, Hulu and more … What a great, mixed-up group this is! Talks about education and creativity, sex and fish, whizzy tech demos and big questions about the universe … it’s a cool snapshot of what we find interesting.
Open Source Economy An open source economy is defined as an economy in which the development of goods and services happens via open collaboration between independent stakeholders on the global level. It is an economy where the rate of innovation across all sectors is significantly higher than the rate of innovation provided by proprietary research and development characteristic of the 20th century and the beginning of the 21st century. In short, the open source economy is efficient: it avoids competive waste - thereby optimizing not only production, but also - distribution. An open source economy related to the work of Open Source Ecology is defined as a parallel economy that can gain a significant market share of global production, within a context of artificial scarcity that is charactisting of Business as Usual enterprises. The open source economy is an economy that optimizes both production and distribution, while providing environmental regeneration and social justice.
The Dunbar Number, From the Guru of Social Networks A little more than 10 years ago, the evolutionary psychologist Robin Dunbar began a study of the Christmas-card-sending habits of the English. This was in the days before online social networks made friends and “likes” as countable as miles on an odometer, and Dunbar wanted a proxy for meaningful social connection. He was curious to see not only how many people a person knew, but also how many people he or she cared about. The best way to find those connections, he decided, was to follow holiday cards. Atlas of Urban Expansion Massive urbanization, accompanied by the rapid expansion of cities and metropolitan regions and the sprawling growth of megacities the world over, is one of the most important transformations of our planet. Much of this explosive growth has been unplanned. Cities in developing countries have been unprepared for absorbing the many millions of the rural poor that are still crowding into informal settlements. These cities are now scheduled to double their urban population in the next thirty years, and possibly triple the land area.
The 20 most-watched TED Talks to date TEDTalks The 20 most-watched TEDTalks (so far) Today, on the fifth birthday of TEDTalks video, we’re releasing a new list of the 20 most-watched TEDTalks over the past five years — as watched on all the platforms we track: TED.com, YouTube, iTunes, embed and download, Hulu and more … What a great, mixed-up group this is! Talks about education and creativity, sex […] Playlist The Science of Familiar Strangers: Society's Hidden Social Network We’ve all experienced the sense of being familiar with somebody without knowing their name or even having spoken to them. These so-called “familiar strangers” are the people we see every day on the bus on the way to work, in the sandwich shop at lunchtime, or in the local restaurant or supermarket in the evening. These people are the bedrock of society and a rich source of social potential as neighbours, friends, or even lovers. But while many researchers have studied the network of intentional links between individuals—using mobile-phone records, for example—little work has been on these unintentional links, which form a kind of hidden social network. The results are a fascinating insight into this hidden network of familiar strangers and the effects it has on people. All this is made possible by the Singaporean bus service’s smart card ticketing system.
Project Management Game online free,CEO simulation games for kids,students Game Corp is a highly interactive, entertaining and quirky business management simulation game for older kids, high school and college students, and grownups who enjoy online games that involve business themes and thinking strategy. In Game Corp, you take control of your very own awesome computer game development company! Starting from scratch, you have to hire good workers, manage projects, create new flash games, and gradually build your business up from a small-time, mini-game development outfit into a highly successful global corporation in the online game industry!
Processing - Please Wait. "An Exceptionally Simple Theory of Everything" is a physics preprint proposing a basis for a unified field theory, very often referred to as "E8 Theory," which attempts to describe all known fundamental interactions in physics and to stand as a possible theory of everything. The paper was posted to the physics arXiv by Antony Garrett Lisi on November 6, 2007, and was not submitted to a peer-reviewed scientific journal. The title is a pun on the algebra used, the Lie algebra of the largest "simple", "exceptional" Lie group, E8. The theory received accolades from a few physicists amid a flurry of media coverage, but also met with widespread skepticism. Scientific American reported in March 2008 that the theory was being "largely but not entirely ignored" by the mainstream physics community, with a few physicists picking up the work to develop it further. Overview Non-technical overview Levels of magnification: 1.
Facebook's '3.74 degrees of separation' is a world away from being significant This week Facebook announced that there are on average just 3.74 intermediate friends separating one user from another. They then stood back and waited for us all to be duly amazed. Well, let's throw some numbers at the Facebook wall and see what sticks. A few months ago I was on Facebook looking for a practitioner of pseudoscience whom I was in the process of annoying with facts (it's a hobby of mine). When I eventually found them, Facebook kindly told me that we already had a friend in common. This came as no real surprise to me; through my desultory use of Facebook over the years I have somehow accrued 362 "friends".