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Comment Re:Paper Money w/ Digital signatures (Score 1) 528

A digital cryptographic signature printed on a bill can be copied as easily as anything else. A private key hidden in a chip embedded in the bill would make it possible to verify the authenticity of a bill without communicating with headquarters, and could make it impossible to duplicate the bill without extracting the private key from deep within the chip. Unfortunately a chip for every bill would be a little expensive, and a resourceful attacker like North Korea could likely extract the secret keys from the chips.

If cash were eliminated it would be hard on criminals, but I doubt it would cut crime hugely. They could still use cash from other countries, cash they create themselves, precious metals, diamonds, barter, and possibly various attacks on electronic currency.

Comment Re:OpenNTPD (Score 1) 142

OpenNTPD was significantly more stable if I recompiled the kernel for pentium instead of 386. It was just a few milliseconds improvement in stability, but it was a clear difference. In the kernel config file there was simply a few consecutive lines labeled something like 386 486 586 686. I did nothing but commented out all but the 586 or 686 line and recompiled. This was about six years ago though, so I don't know if it's still an issue. I'm sorry I didn't subit a report back then. I meant to. Thanks for developing OpenNTPD. I don't get the impression that David Mills is concerned enough about security.

Comment Re:What is the real motivation? (Score 3, Insightful) 212

The only lectures on Artificial Intelligence on Youtube are by Indian professors, but I couldn't understand them through the accent. With lectures on video, you could listen to the best lecturer in the country instead of some third rate professor. They can do a frequently asked questions list and update the lecture according to the questions. Electronic books can be both much shorter and longer. That is, if you can follow the quick example you can move on, if you can't, then you click a link for an expanded explanation. I don't think we should be wasting $50000/yr and the mind of an intelligent person to blab out a lecture like a video projector. One on one or small group help would be a much better use of those resources.

Comment Re:Psychology (Score 1) 138

sstamps wrote:

sstamps wrote:

First, he has NEVER stonewalled requests for the raw data. [emphasis added]

the list of stations that CRU used was published in 2008

the programme that produced the global temperature average had been available from the Met Office since December 2009.

So you admit that they stonewalled on the station list till 2008? And you admit that they didn't release their software until after they had been exposed by the climate gate email release? I may not have been clear, but I didn't mean to imply that they still haven't released stuff, but only that they were stonewalling at one time.

Jones PERSONALLY refused. The information about what data was used has been available since the original papers and research were performed! IT'S IN THE RESEARCH

Strange. Why didn't he just give the URL for the files instead of refusing. But of course you've quoted a source admitting he didn't release the station list till 2008. So it doesn't look like it was "IN THE RESEARCH".

mrcaseyj wrote:

It has only been replicated by his buddies.

You cite BEST as replication by some other than buddies, but I was referring to replication of the hockey stick. BEST did not replicate the hockey stick. Furthermore, BEST was lead by an alarmist, so that is not clearly replication by other than buddies.

sstamps wrote:

when they are caught in their lies and ignorance, they NEVER, and I mean *NEVER* admit fault and accept what they were wrong about.

Anthony Watts admitted after his own study that the average temperature trend of the urban stations was no higher than the good rural stations. Of course he then minimized it and tried to make a seemingly insignificant issue of the difference between the trends in the diurnal temperature range. I see tons of ignorance on the skeptic side. The alarmist side actually seems to be much more grounded in facts. But now we're seeing that the alarmist facts may not be as solid as was once thought. And you simply dismissed my criticism of the attempt to "hide the decline", but you gave no reasoned defense. That is understandable given it appears to be indefensible.

I know how it sometimes seems hard to believe that your opponents can be so unreasonable. It starts to look like they are not being honest. Some oil company shills probably aren't. But I fully believe that there are many skeptics, even ones that have looked deeply into the evidence, who truly do not believe there is cause for alarm. You probably know that people can have an amazing ability to convince themselves of something. Some people also find it very painful to admit they were wrong, even to themselves. Unless the evidence against them is massively undeniable, they will not change their mind. And often, even if the evidence IS massively undeniable, they will not admit it. This cuts both ways of course. Back when we didn't know how much hiding was going on, many people adopted a conclusion, and are very reluctant to admit a mistake. It's especially hard for them to back off their conclusion because the evidence against the alarmist case is nowhere near overwhelming.

I don't think it matters anyway, because if the alarmists turn out to be right, there are a variety of relatively inexpensive ways to shade the planet and reliably bring the temperature under control. The really bad worst case scenarios are of negligible likelihood. It is impossible with available funds, and not an optimum allocation of resources, to spend trillions of dollars to prevent every disaster for which there is a tiny possibility. Those funds would probably be better spent preventing wars, plagues, cancer, poverty, or other things.

Comment Re:Psychology (Score 1, Informative) 138

sstamps wrote:
>First, he has never stonewalled requests for the raw data. It's been out there for ANYONE to obtain. The problem is that, for some of it, you have to PAY to get it, and UEA was forbidden by contract to give away said data for free...

No. Those who requested the data requested that if all the data couldn't be provided, then the freely available data should be provided. They were refused. When asked for a list of what data was used, but not the data itself, they refused. Even if the data is available for free on the net, how can the results be replicated if they will not say which data was used?

>Mann's work has been vindicated and replicated time and time again...

It has only been replicated by his buddies. It's like a study by an oil company being replicated by another oil company. There can be no vindication for trying to "hide the decline". It is a well established rule of science that you don't leave out data that casts doubt on your conclusion.

You've fallen for their story. Many of us used to think the alarmists were good willed, and we assumed they were honest. I still think they are good willed, but we now know they are not honest. They hide important information that casts doubt on their theories. And worse, when their colleagues are caught doing corrupt science, their community maintains a code of silence or defends the indefensible. This casts doubt on all the evidence brought by the entire climate science community.

Comment Re:Revoking Dutch Gov certs is NOTpointless (Score 1) 78

I was mistaken above. Pe1chl explained below that it was the Dutch Government that acted as certificate authority and issued an intermediate certificate to DigiNotar, which used the intermediate certificate to issue certificates to various government agencies. The government needs to revoke the intermediate certificate it issued to DigiNotar and thus invalidate all the government certificates issued under it.

Comment Revoking Dutch Gov certificates is pointless (Score 1) 78

Relying on genuine certificates is not insecure. Revoking genuine certificates solves nothing. If someone's browser is relying on the genuine government certificates issued by Diginotar, then there is no security vulnerability with that particular communication, regardless of anything that happened at Diginotar. If somebody is fed a bogus certificate issued by Diginotar, and their browser relies on the bogus certificate, then revoking the genuine government certificates won't help.

Of course it is necessary for browsers to revoke trust in all Diginotar issued certificates. So all the government certificates issued by Diginotar are effectively revoked, regardless of any government action, for anyone using a browser that has stopped trusting Diginotar.

Comment Re:Have you not seen (Score 1) 312

Terminator or Matrix would happen much faster than this educational AI loop. The educational AI loop would require decades for each round of feedback. And considering that the AI would have to be nearly as smart as humans to outperform human teachers significantly, the AI should be able to enhance itself much more rapidly than waiting for the next generation of kids to grow up and reprogram it.

Comment Re:Dodgy conclusions... (Score 1) 90

This study might also not mean a lot if they didn't take into account the size of the metropolitan area around the city. For example Los Angeles might not have ranked high if you only include attacks from within the proper city limits but exclude attacks from contiguous cities like Hollywood or poorer areas.

Comment Legal precedent considers email secure (Score 1) 236

Back when clients started sending emails to lawyers, it was questioned whether lawyers had a responsibility to warn clients on their web sites that email was insecure. The courts decided that lawyers needn't publish public keys and tell clients to use them because it was considered almost always secure enough for almost all clients. Obviously some clients and lawyers need all the security they can get, but they apparently don't consider that the case in general. The situation was likened to telephones, snail mail, and faxes, which can be intercepted by a variety of adversaries, but apparently rarely are. The last time I sent an email to a lawyer a year or so ago, I checked the lawyer's web site and found no public key.

One argument against lawyers encouraging clients to encrypt email is that even encrypted email is so insecure that the false sense of security might do more harm than good for the clients if they put things in emails that are better left unwritten.

Comment Re:Human video projectors (Score 2) 139

You're concentrating on the benefits of lecturing but not fairly balancing the costs. If you're doing a good job for your students, then you're spending a huge number of hours designing and reciting lectures. One of the things that is highly beneficial for research is for researchers to expand their knowledge into quite different fields, e.g. a physicist studying sociology for a change. Such expansion of knowledge would likely be of greater benefit than reviewing and explaining what you already know to some students who can get it explained from somewhere else. There are also lots of journal articles and other writings in your own field that would be useful to read and would expand your mind, but nobody has time to read all the good ones. Researchers in every field could benefit greatly from increased mastery of the tools of their field such as a physicist studying more computer science, math, or electrical engineering. Questions from students and discussion with professors can be stimulating and educational, but I didn't suggest that communication stop, I just suggest that lectures are an inefficient way to facilitate such communication. Sure lecturing and teaching has considerable benefits, but those benefits are small compared to the alternatives.

Comment Re:Human video projectors (Score 2) 139

I think the professor's knowledge would be strengthened more by studying deeper or more broadly or by research, rather than designing or delivering lectures. And professors could be made available to answer questions at any given time that students are watching the videos as well. Many questions should not distract and waste the time of many other students anyway. If the question is a good question, it should be included in the FAQ or incorporated into the video lecture. Why do you need a live lecturer to get through your education?

Some say that meeting people is a main benefit of college. That is surely a major benefit. But isn't there plenty of less expensive ways that don't waste the lives of talented professors and the money of poor students and parents? Clubs, internet forums, professional societies, etc.

I suspect one of the main purposes of regularly scheduled classes is just to get people to do the learning that they might otherwise never get around to. An externally imposed discipline. I haven't thought of any obvious alternative solution to that, but maybe with some kind of formal structure and time limits, it wouldn't be too big a problem.

Comment Human video projectors (Score 3, Interesting) 139

So why do we have all these highly intelligent expensive professors wasting their time standing in front of hundreds of students in a lecture hall reciting their teaching script like a human video projector? Let the best lecturers in the country make videos and let the students send in questions and assemble a frequently asked questions list and then put those professors to work doing research for the benefit of humanity.

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