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21  Other / Off-topic / Time Travel Simulation Resolves “Grandfather Paradox” on: September 03, 2014, 10:37:42 AM
Time Travel Simulation Resolves “Grandfather Paradox”

What would happen to you if you went back in time and killed your grandfather? A model using photons reveals that quantum mechanics can solve the quandary—and even foil quantum cryptography  
  
http://www.scientificamerican.com/article/time-travel-simulation-resolves-grandfather-paradox/

Quote
Deutsch's quantum solution to the grandfather paradox works something like this:  
  
Instead of a human being traversing a CTC to kill her ancestor, imagine that a fundamental particle goes back in time to flip a switch on the particle-generating machine that created it. If the particle flips the switch, the machine emits a particle—the particle—back into the CTC; if the switch isn't flipped, the machine emits nothing. In this scenario there is no a priori deterministic certainty to the particle's emission, only a distribution of probabilities. Deutsch's insight was to postulate self-consistency in the quantum realm, to insist that any particle entering one end of a CTC must emerge at the other end with identical properties. Therefore, a particle emitted by the machine with a probability of one half would enter the CTC and come out the other end to flip the switch with a probability of one half, imbuing itself at birth with a probability of one half of going back to flip the switch. If the particle were a person, she would be born with a one-half probability of killing her grandfather, giving her grandfather a one-half probability of escaping death at her hands—good enough in probabilistic terms to close the causative loop and escape the paradox. Strange though it may be, this solution is in keeping with the known laws of quantum mechanics.
22  Local / Off-Topic (Deutsch) / ZDF sperrt "Anstalt"-Sendung weiterhin komplett in der Mediathek on: August 05, 2014, 05:59:24 PM
Ich poste das mal hier, weil dem guten alten Streisand-Effekt kann man ja gar nich genug nachhelfen... 



Quote
ZDF sperrt "Anstalt"-Sendung weiterhin komplett in der Mediathek

Zwei "Zeit"-Journalisten haben gegen das ZDF einstweilige Verfügungen gegen Teile der Sendung vom 29. April erwirkt. Der Sender will sich juristisch wehren – lässt aber weiterhin die komplette Sendung gelöscht, moniert der Piratenpolitiker Patrick Breyer.



[...]

http://www.heise.de/newsticker/meldung/ZDF-sperrt-Anstalt-Sendung-weiterhin-komplett-in-der-Mediathek-2283400.html



23  Other / Politics & Society / Former NSA Director Patenting Computer Security Techniques on: August 04, 2014, 02:53:51 PM
https://www.schneier.com/blog/archives/2014/08/former_nsa_dire.html

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Former NSA Director Patenting Computer Security Techniques

Former NSA Director Keith Alexander is patenting a variety of techniques to protect computer networks. We're supposed to believe that he developed these on his own time and they have nothing to do with the work he did at the NSA, except for the parts where they obviously did and therefore are worth $1 million per month for companies to license.

No, nothing fishy here.
24  Local / Altcoins (Deutsch) / Stellar Lumens (XLM) on: July 31, 2014, 11:57:39 PM
https://www.stellar.org/


Quote
Introducing Stellar

Stellar is a decentralized protocol for sending and receiving money in any pair of currencies. This means users can, for example, send a transaction from their Yen balance and have it arrive in Euros, Yen, or even bitcoin. We’re expecting to support the usual categories of transactions: payments to a merchant, remittances back home, or rent splits with a roommate.

You can hold a balance with a gateway, which is any network participant you trust to accept a deposit in exchange for credit on the network. Stellar also comes with a built-in digital currency, referred to as the stellar, which we’re giving away for free. The currency will have value (as determined by the market); however, its primary function is providing a conversion path between other currencies.

We hope that people will build applications on top of Stellar to help bridge the gap between digital and traditional currencies.

[...]

//edit by mole0815: Titel angepasst.
25  Other / Politics & Society / Alternatives to Liberal Individualism and Authoritarian Collectivism on: July 17, 2014, 03:01:29 PM

http://disinfo.com/2014/07/alternatives-liberal-individualism-authoritarian-collectivism/


Alternatives to Liberal Individualism and Authoritarian Collectivism
A thought provoking essay from Jeremy Gilbert on how the confines of "Liberal Individualism" and "Authoritarian Collectivism" stifle true democracy.
26  Other / Off-topic / Hacking protonmail - with a browser on: July 07, 2014, 04:24:17 PM
Hacking protonmail - with a browser

http://vimeo.com/99599725

/cc all those fancy HTML5-Javascript-wallets out there (blockchain.info, Ripple, etc)
27  Local / Deutsch (German) / Karl-Theodor zu Guttenberg Joins Ripple Labs Advisory Board on: July 02, 2014, 09:59:57 AM
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Karl-Theodor zu Guttenberg Joins Ripple Labs Advisory Board



Ripple Labs is thrilled to announce that Karl-Theodor zu Guttenberg is joining the advisory board. Mr. zu Guttenberg is the Chairman and a Founder of Spitzberg Partners LLC, a New York-based boutique corporate advisory and investment firm that provides strategic counsel and investment insights on European and international political, economic, diplomatic, technology, and security issues.

He served as Minister of Economics and Technology and then as Minister of Defense in the cabinet of German Chancellor Angela Merkel. As the youngest Defense Minister in German history, he led the most significant structural reform of the German armed forces since the Bundeswehr’s founding. During his time in office, Minister zu Guttenberg was Germany’s most popular politician.

[...]

One set of challenges that I am primarily interested in relates to political and regulatory affairs. While Bitcoin gained its initial popularity as a pet-project for anarchists, it is my belief that we have moved beyond cryptocurrencies being used as a way to withdrawal from the global financial system.  Therefore, it will be regulated in some form. We see already the first, uncoordinated steps, specifically in Europe.

[...]

https://ripple.com/blog/karl-theodor-zu-guttenberg-joins-ripple-labs-advisory-board/



omg, what the hell...

ob die wissen, auf wen die sich da einlassen...  Cool
28  Other / Politics & Society / 12 Futuristic Forms of Government That Could One Day Rule the World on: June 15, 2014, 08:16:40 PM
http://io9.com/12-futuristic-forms-of-government-that-could-one-day-ru-1589833046

Quote
12 Futuristic Forms of Government That Could One Day Rule the World



As history has repeatedly shown, political systems come and go. Given our rapid technological and social advances, it's a trend we can expect to continue. Here are 12 extraordinary — and even frightening — ways our governments could be run in the future.

1. Noocracy

Similar to Plato's "government of the wise," a noocracy would be, in the words of "biosphere" popularizer Vladimir Vernadsky, "a social and political system based on the priority of the human mind." [...]

2. Cyberocracy

In a cyberocracy, governments, or governmental institutions, would rule by the effective use of information. [...]

3. An AI Singleton

But once an artificial intelligence becomes sophisticated and powerful enough, it could set itself up as a Singleton — a hypothetical world order in which there is a single decision-making agency (or entity) at the highest level of control. [...]

4. Democratic World Government

We may very well be on our way to achieving the Star Trek-like vision of a global-scale liberal democracy — one capable of ending nuclear proliferation, ensuring global security, intervening to end genocide, defending human rights, and putting a stop to human-caused climate change. [...]

5. The Polystate

But if one overarching global system is not to your liking, you can always go non-local. [...]

6. Futarchy

[...] "Market speculators would set prices that estimate national welfare conditional on adopting proposed policies. When the market estimate of welfare conditional on adopting a policy is higher than the estimate conditional on non-adoption, that proposal becomes law."

7. Delegative Democracy

Also known as liquid democracy, it's described by Bryan Ford as a new paradigm for democratic organization where individual vote transfers, or delegation, is emphasized over mass election. In such a system, voting power is vested in delegates rather than representatives. [...]

8. Seasteading

For those of you looking to escape into international waters, there's always seasteading to consider — modular, autonomous, voluntary city-states. They could take on the form of abandoned ocean liners or anything else that floats. [...]

9. Gerontocracy

As people live increasingly longer, and as we gradually phase into the era of radical life extension, there's the distinct possibility that the aged will hold on to their wealth and power. [...]

10. Demarchy

Coined by Australian philosopher John Burnheim, a demarchy, or lottocracy, is a form of government in which the state is governed by randomly selected decision makers who have been selected from a pool of eligible citizens. [...]

11. A Dark Enlightenment

If a band of wingnut anarcho-capitalists get their way, we'll take one step forward by overthrowing liberal democracy — and then take two steps back by re-instating a monarchist or authoritarian system. The ringleader of this neoreactionary movement, or dark enlightenment as its called, is Mencius Moldbug. [...]

12. Post-Apocalyptic Hunter-Gatherers

Speaking of regression, there's also the possibility that some kind of catastrophic event will force us to revert to paleolithic politics. [...]
Which one would you prefer though?  Smiley
29  Other / Politics & Society / The Lack of Major Wars May Be Hurting Economic Growth on: June 14, 2014, 12:12:55 PM
Quote
The Lack of Major Wars May Be Hurting Economic Growth
 

It’s not because war spending itself is so good. It’s because the threat of war can inspire countries to do great things.
http://www.nytimes.com/2014/06/14/upshot/the-lack-of-major-wars-may-be-hurting-economic-growth.html



What an Orwellian "war is peace" rhetoric  Roll Eyes

Also a classical Broken Window Fallacy  https://en.wikipedia.org/wiki/Broken_window_fallacy

And if war is what we need for inspiration, what a sad state of affairs the human mind is in.   Embarrassed
30  Other / Politics & Society / If kings had discovered anarchocapitalism... on: May 24, 2014, 10:35:02 PM


31  Other / Politics & Society / FBI: We need wiretap-ready Web sites - now on: May 05, 2014, 11:20:26 PM
http://www.cnet.com/news/fbi-we-need-wiretap-ready-web-sites-now/

Quote
FBI: We need wiretap-ready Web sites - now

CNET learns the FBI is quietly pushing its plan to force surveillance backdoors on social networks, VoIP, and Web e-mail providers, and that the bureau is asking Internet companies not to oppose a law making those backdoors mandatory.



The FBI is asking Internet companies not to oppose a controversial proposal that would require firms, including Microsoft, Facebook, Yahoo, and Google, to build in backdoors for government surveillance .

In meetings with industry representatives, the White House, and U.S. senators, senior FBI officials argue the dramatic shift in communication from the telephone system to the Internet has made it far more difficult for agents to wiretap Americans suspected of illegal activities, CNET has learned.

The FBI general counsel's office has drafted a proposed law that the bureau claims is the best solution: requiring that social-networking Web sites and providers of VoIP, instant messaging, and Web e-mail alter their code to ensure their products are wiretap-friendly.

[...]

Will go for bitcointalk too of course.  Cool
32  Bitcoin / Bitcoin Discussion / If bitcoins were around in the '90s... on: March 21, 2014, 04:28:48 PM



If bitcoins were around in the '90s...
http://www.youtube.com/watch?v=ZW-oUXqomT0


 Grin
33  Bitcoin / Press / 2014-03-06 Gnostic Media - An Interview with Thomas Hunt - "Mad Bitcoins" - #192 on: March 13, 2014, 11:42:12 AM
http://www.youtube.com/watch?v=SDOwrM1qOJg

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Today Thomas Hunt joins the Gnostic Media podcast to discuss "Mad Bitcoins". This episode is being released on Thursday, March 06, 2014, and was recorded yesterday.

What's with all the mainstream media hype lately over Bitcoin? What is Bitcoin? What is Mt. Gox? Is Mt. Gox the same as Bitcoin? Or is that equivalent to saying Enron, or Bernie Madoff, or Al Capone, is the dollar? Is Bitcoin really only used by drug smugglers and pornographers? Is it really a government conspiracy for a global digital currency? A Ponzi scheme? Is it really unbacked by anything? Is it something we should fear because it's not supported by the Government, which brought us the dollar that's lost most of its value through usury and inflation? (Note: This is the same government that bailed out the banks in 2008 - the failed banks. The same government that prints the money and then takes 1/3rd of it back each year.)

You've probably heard most, if not all, of these exaggerations.

What if, instead of believing and spreading propaganda and fear, we got informed on what Bitcoin really is? I've personally done over 6 months research in preparation for doing some shows on this topic.

Today Thomas Hunt joins us from Mad Bitcoins.
Mad Bitcoins is a daily YouTube news show covering the exciting world of cryptocurrency. Watch and Subscribe at YouTube. Host Thomas Hunt also moderates a more serious weekly Bitcoin panel discussion entitled "The Bitcoin Group" available at TheBitcoinGroup.com and is hard at work on the new WorldCryptoNetwork.com.
34  Local / Deutsch (German) / ***Breaking*** Satoshi Nakamoto gefunden on: March 06, 2014, 12:46:43 PM
Scheint legit zu sein diesmal



https://twitter.com/gavinandresen/status/441547758827474946

http://mag.newsweek.com/2014/03/14/bitcoin-satoshi-nakamoto.html oder http://pastebin.com/6HeKuibE
35  Alternate cryptocurrencies / Altcoin Discussion / whats up with gox and litecoin support now on: February 25, 2014, 01:58:53 PM
nt
36  Local / Presse / 2014-01-04 heise online - Bitcoin war gestern, morgen kommt die Volksmünze on: January 04, 2014, 12:55:01 PM
http://www.heise.de/newsticker/meldung/Bitcoin-war-gestern-morgen-kommt-die-Volksmuenze-vielleicht-2075044.html

Quote
[...] Im Licht des Bitcoin-Erfolgs haben sich einige weitere virtuelle Währungen um die Gunst der Internetnutzer beworben: Ripple, Litecoin, Peercoin, Namecoin oder Dogecoin, die einen Hund auf der virtuellen Münze abbildet. Auch wenn man letztere fast als Joke auffassen kann, gibt es doch auch Nutzer dieser digitalen Währung. [...]
37  Other / Off-topic / Searching the Internet for evidence of time travelers on: January 03, 2014, 10:52:43 AM
 
http://arxiv.org/abs/1312.7128 
https://news.ycombinator.com/item?id=6998936 
 
Quote
Time travel has captured the public imagination for much of the past century, but little has been done to actually search for time travelers. Here, three implementations of Internet searches for time travelers are described, all seeking a prescient mention of information not previously available. The first search covered prescient content placed on the Internet, highlighted by a comprehensive search for specific terms in tweets on Twitter. The second search examined prescient inquiries submitted to a search engine, highlighted by a comprehensive search for specific search terms submitted to a popular astronomy web site. The third search involved a request for a direct Internet communication, either by email or tweet, pre-dating to the time of the inquiry. Given practical verifiability concerns, only time travelers from the future were investigated. No time travelers were discovered. Although these negative results do not disprove time travel, given the great reach of the Internet, this search is perhaps the most comprehensive to date.
38  Local / Presse / 2014-01-03 tagesschau.de - Internetwährung Bitcoin wird fünf Jahre alt on: January 03, 2014, 10:21:53 AM
http://www.tagesschau.de/wirtschaft/bitcoin110.html

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Es gibt sie seit gerade mal fünf Jahren - doch schon jetzt gilt die Internetwährung Bitcoin manchen als ernsthafte Alternative zu Euro oder Dollar. Doch wie funktioniert das "digitale Gold" überhaupt? Und was kann der normale Verbraucher damit tun?
39  Local / Altcoins (Deutsch) / na endlich: der altcoin-klickibunti-baukasten on: January 02, 2014, 02:35:04 PM

na endlich: http://coingen.bluematt.me/
http://www.reddit.com/r/Bitcoin/comments/1u861l/coingen_create_your_own_altcoin_in_60_seconds/

 Grin
40  Other / Off-topic / Simulations back up theory Universe is a hologram on: December 11, 2013, 10:53:53 AM
http://www.nature.com/news/simulations-back-up-theory-that-universe-is-a-hologram-1.14328

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Simulations back up theory that Universe is a hologram

A ten-dimensional theory of gravity makes the same predictions as standard quantum physics in fewer dimensions.


At a black hole, Albert Einstein's theory of gravity apparently clashes with quantum physics, but that conflict could be solved if the Universe were a holographic projection.

A team of physicists has provided some of the clearest evidence yet that our Universe could be just one big projection.

In 1997, theoretical physicist Juan Maldacena proposed that an audacious model of the Universe in which gravity arises from infinitesimally thin, vibrating strings could be reinterpreted in terms of well-established physics. The mathematically intricate world of strings, which exist in nine dimensions of space plus one of time, would be merely a hologram: the real action would play out in a simpler, flatter cosmos where there is no gravity.

Maldacena's idea thrilled physicists because it offered a way to put the popular but still unproven theory of strings on solid footing — and because it solved apparent inconsistencies between quantum physics and Einstein's theory of gravity. It provided physicists with a mathematical Rosetta stone, a 'duality', that allowed them to translate back and forth between the two languages, and solve problems in one model that seemed intractable in the other and vice versa. But although the validity of Maldacena's ideas has pretty much been taken for granted ever since, a rigorous proof has been elusive.

In two papers posted on the arXiv repository, Yoshifumi Hyakutake of Ibaraki University in Japan and his colleagues now provide, if not an actual proof, at least compelling evidence that Maldacena’s conjecture is true.

In one paper, Hyakutake computes the internal energy of a black hole, the position of its event horizon (the boundary between the black hole and the rest of the Universe), its entropy and other properties based on the predictions of string theory as well as the effects of so-called virtual particles that continuously pop into and out of existence. In the other, he and his collaborators calculate the internal energy of the corresponding lower-dimensional cosmos with no gravity. The two computer calculations match.

“It seems to be a correct computation,” says Maldacena, who is now at the Institute for Advanced Study in Princeton, New Jersey and who did not contribute to the team's work.

Regime change

The findings “are an interesting way to test many ideas in quantum gravity and string theory”, Maldacena adds. The two papers, he notes, are the culmination of a series of articles contributed by the Japanese team over the past few years. “The whole sequence of papers is very nice because it tests the dual [nature of the universes] in regimes where there are no analytic tests.”

“They have numerically confirmed, perhaps for the first time, something we were fairly sure had to be true, but was still a conjecture — namely that the thermodynamics of certain black holes can be reproduced from a lower-dimensional universe,” says Leonard Susskind, a theoretical physicist at Stanford University in California who was among the first theoreticians to explore the idea of holographic universes.

Neither of the model universes explored by the Japanese team resembles our own, Maldacena notes. The cosmos with a black hole has ten dimensions, with eight of them forming an eight-dimensional sphere. The lower-dimensional, gravity-free one has but a single dimension, and its menagerie of quantum particles resembles a group of idealized springs, or harmonic oscillators, attached to one another.

Nevertheless, says Maldacena, the numerical proof that these two seemingly disparate worlds are actually identical gives hope that the gravitational properties of our Universe can one day be explained by a simpler cosmos purely in terms of quantum theory.
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