The Decline of Wikipedia: Even As More People Than Ever Rely on It, Fewer People Create It.

Today’s Web is dominated by sites such as Facebook and Twitter, where people maintain personal, egocentric feeds. Outside specific settings like massive multiplayer games, relatively few people mingle in shared virtual space. Instead, they use mobile devices that are unsuited to complex creative work and favor neatly self-­contained apps over messier, interconnected Web pages.

  • Web is becoming personalized, while Wikipedia remains as a public good – when Google’s search engine or Apple’s Siri uses Wikipedia content to answer a question, Google users are invited to report inaccuracies, but the feedback goes to Google, not to Wikipedia itself.
  • Wikipedia community constructed barriers to prevent vandalism, which deter the newcomers as well.
  • When Wikipedians achieved their most impressive feat of leaderless collective organization, they unwittingly set in motion the decline in participation that troubles their project today.

The Boom Towns and Ghost Towns of the New Economy

The economic landscape is being reshaped around two kinds of hubs—centers of knowledge and ideas, and clusters of energy production. Overwhelmingly, these are the places driving the economic recovery. Outside them, the economy remains troubled and weak.

  • Energy stands alongside knowledge as the second pillar of America’s recovery.
  • America’s leading energy hubs prosper not just because of the stuff they pump out of the ground, but because of their ability to combine resources with technology and knowledge.
  • America’s emergent growth model, which is taking shape around its knowledge and energy hubs, may be more powerful than its old one, the pre-crash model depended on the continual building of debt-financed houses.
  • The main threats to America’s growth model come from nowhere else but deepening class and geographic divides.
The National Security Agency (NSA) has recently declassified an amazing letter that John Nash sent to it in 1955. In this hand-written letter, he shows an amazingly prescient analysis anticipating computational complexity theory as well as …modern cryptography.  In the letter, Nash takes a step beyond Shannon’s information-theoretic formalization of cryptography (without mentioning it) and proposes that security of encryption be based on computational hardness — this is exactly the transformation to modern cryptography made two decades later by the rest of the world (at least publicly…).  He then goes on to explicitly focus on the distinction between polynomial time and exponential time computation, a crucial distinction which is the basis of computational complexity theory, but made only about a decade later by the rest of the world.

There is a well-known excuse with P ≠ NP among computer scientests: “I cannot prove this but neither can all.” This letter is the very first letter in which the mention is written (which is exposed just now!); this is even earlier than the famous Gödel’s Letter.

Hello world!

But what can I fill up here with? Actually I have no idea yet.