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Cause and Effect: How a Revolutionary New Statistical Test Can Tease Them Apart

cwsumner Re:This tells us nothing about the arrow of time (132 comments)

Which direction in time does cause/effect flow? The world may never know.

Time flows in all directions, but you only see one direction. That direction depends on which direction -you- are from the "big bang".

1 hour ago

Cause and Effect: How a Revolutionary New Statistical Test Can Tease Them Apart

cwsumner Re:So, correlation CAN mean causation? (132 comments)

Every consequence is delayed. Except for maybe some effects of quantum entanglement. (grin)
What delay do you suppose is the cutoff for something to not be correlated?

Actually, no.

Repetitive events may not have a beginning or end, within the data gathering period. It is quite common to not be able to tell which is "first". In that test condition, the result can "come before" the cause, at least mathemetically. Or on the display screens. It's called "phase reset", and probably other things in other tech dialects.

And most of the questions discussed on slashdot are repetitive events...

The article seems practical, though. The cause and effect both have noise. The noise from the cause is transferred to the effect. So, the effect has much more noise.

Of course, the normal troubleshooting technique is to inject artificial noise. As in: Touch it with a square wave, and see if it comes out the speakers! 8-)

1 hour ago

US Links North Korea To Sony Hacking

cwsumner Re:Are You Joking? (182 comments)

But that wasn't the claim. The claim was that Iraq had a program and was building new weapons. They claimed that Iraq was dodging the UN weapon inspectors by giving them the US made munitions and keeping their new program in trailer based mobile facilities. ...

There was at least one of those "trailer based mobile facilities." found later, I saw photos of it. I think there were also others.
They were not operable at the time they were found, but I would not expect them to be.

And don't forget that Irag dropped chemicals on at least one Kurd city and killed most of the people there, so the munitions actually worked.

Also, the Democrat politicians were just as convinced as the Republican politicians and the UN, it was not until later that they complained.
I was listening to both... 8-)

3 hours ago

To Fight Currency Mismatches, Steam Adding Region Locking to PC Games

cwsumner Re:Why Steam? Why? (158 comments)

By that logic, why don't they sell games cheaper in the west to people on lower incomes?

They -do-. It's called "sales" or "old game special", or "Steam sale".

All of this happens already, for hundreds of years. I'm a Tech, but I still know that much business!

Besides, having the same price all over and at all times just means some people can't play the game. Why do that, when allowing a download is only $.02 extra in electricity?

And no, someone selling the game for $.02 somewhere does -not- mean that the value of your game becomes that. Value is not constant, and is what you want it to be. Value is entirely imaginary, until you either buy or sell the item. Then it is very real, until the deal is done. Then it becomes imaginary again.

Is that enough to "blow you mind"? 8-)

6 hours ago

Marissa Mayer's Reinvention of Yahoo! Stumbles

cwsumner A CEO that knows Tech (219 comments)

We all complain about CEOs that know nothing about the tech their products use.

Now we hear about a CEO that knows tech, and they get dumped on!!

What do we want? ... Or is the dumping just hired Google psychwar mercinaries? 8-P

7 hours ago

Marissa Mayer's Reinvention of Yahoo! Stumbles

cwsumner Re:Yeah, don't focus on products. (219 comments)

You *do* realize that he was playing buzzword bingo. Not that I disagree...the only way to make that better is if it involved bacon somehow...

"And, it has a cover made entirely of Bacon, at extra cost!"

Wow, I think you guys covered every buzzword that I have heard recently... 8-)

7 hours ago

Google Proposes To Warn People About Non-SSL Web Sites

cwsumner Re:503 (391 comments)

Also, it will make people accustomed to the pop-up by giving so many false positives. So much that, when it actually matters and they are sending information, they'll just ignore it because it comes up 10 times per day anyway.

This is the real problem. I have seen people ignore the most raucus pop-up warnings, because they were accustomed to them and assumed they were false posives. Any app that pops up too much alarm will harm all of the secure sites.


In Breakthrough, US and Cuba To Resume Diplomatic Relations

cwsumner Re:Does That Include Email? (424 comments)

So the very polite and courteous email I received from the Cuban Foreign Office back after Hurricane Katrina will no longer be quite the unique bit of memorabilia after all?

Lest we forget, Cuba offered to send doctors and other medical assistance to help the suffering residents in New Orleans after Katrina did its thing .. and the US State Department was hardly even polite with their refusal. ...

So I emailed the Cuban Foreign Office to apologize :-) ...

I remember hearing about that occurrance. I am glad that you sent your email, I thought our people should have been more polite. 8-)

And, your reply email is still unique, no matter what...

2 days ago

In Breakthrough, US and Cuba To Resume Diplomatic Relations

cwsumner Re:Crap (424 comments)

... Lastly, the wonderful beaches and hotels will be overrun. Cuba is so close to the U.S. that development will explode and tourism will skyrocket. The 'pristine' aspect of Cuba will quickly disappear in a morass of tawdry tourist traps. ...

You mean Cuba will return to what it was before Castro? 8-)
Lets hope not...

2 days ago

Researchers Accidentally Discover How To Turn Off Skin Aging Gene

cwsumner Re:Skin deep, but that's where the money is ! (174 comments)

BMWs are for the middle class wannabe rich fuckers.

What's the difference between a BMW and a porcupine?
With the porcupine, the pricks are on the outside.

BMWs are for people that drive the car -themselves-. The prics don't drive.
Hell, you can still get a BMW with a -manual- transmission, doesn't that tell you something? 8-)

2 days ago

The Joker Behind the Signetics 25120 Write-Only Memory Chip Hoax

cwsumner One of a kind (100 comments)

Those others are great fun. 8-)

But the 25120 WOM chip was the only one I know of that was in the actual company catalog, has an actual copyright and the data sheet could be ordered from the company!

And it actually created "buzz" and sales for the company (for other chips).

One guy I knew, insisted for years that it was real... 8-P

3 days ago

In IT, Beware of Fad Versus Functional

cwsumner Re:In IT, Beware of Fad Versus Functional (153 comments)

This is why I still use DOS.

Some places do, particularly for machine controls.
And strangely enough, they never get Viruses or Trojans!

3 days ago

In IT, Beware of Fad Versus Functional

cwsumner Re:We had "cloud computing" back in the 70s (153 comments)

It was called "Time sharing".

And when you reached capacity on your mainframe you did what? Magically create a new mainframe in seconds? ...

He -is- talking about the "Cloud", it just wasn't connected to the clients by a TCP/IP network. The Mainframes (plural) were -not- under the control of the user, they were "out there somewhere", just like today. And with the security and failure risks just like today.

It's true, most of what newcomers think is new is actually very old. Or at least you better hope so, because those are the ones that work.
But a new idea "here and there" can help a lot, fast networks are really nice. 8-)

3 days ago

In IT, Beware of Fad Versus Functional

cwsumner Re:Some practical examples (153 comments)

No matter what the new technology is, and no matter how fantastic it is, it's not going to replace C/C++ for systems-level work, and Python and Perl aren't going anywhere. Truly successful technologies have long tails.

Why not mention Fortran and Cobol why'll you're at it? Python and Perl were the newest hotness decades after Fortran and Cobol were no longer newsworthy.

I think that "newsworthy" is the key word here. The news media and the internet forums seem to live by shouting "new" at everyone.

Besides, there are still "fanboys" for Fortran and Cobol around! And I heard a rumor that someone has an Object capable Fortran, but I don't know if it's true... 8-)

3 days ago

In IT, Beware of Fad Versus Functional

cwsumner Re:I'm guessing that a lot of enterprise technolog (153 comments)

... I think a lot of it is driven by people who either don't have the experience or simply can't handle the current tech and so see anything different as a chance to avoid being found out.

Actually, that's probably a lot of the reason for problems, in techs -or- management.

People entering a situation where they know little have a tendency to do things to invalidate the existing knowledge, so that they are on the same level as everyone else. This can be particularly bad with new managers and can destroy companies. Beware, you might not even be aware that you are doing this! 8-P

Also, an appalling number of people only know one thing, and have no idea that they could learn other things. In the software field, I am talking about the programmers that are "fanboys" for one language and don't know any other. Often this is a "new" language taught by a vendor, that is not useful for all (any?) jobs.

Real programmers know more than one language and more than one computer system. If you don't, it might be a good thing to "study up" on. Even if it is only one of the single-board "toys" you can get for around $35. 8-)

3 days ago

In IT, Beware of Fad Versus Functional

cwsumner Re:In IT, remember to wash your hands (153 comments)

Beware of Fad Versus Functional

What's so IT-specific about this maxim, that it warrants being on Slashdot? A slow news day?

I think the news is that it is being told to the IT Managers, which is news all by it's self!

The problem seems to be worse in IT, since the managers often know less about the work than in other fields.

3 days ago

Rosetta Results: Comets "Did Not Bring Water To Earth"

cwsumner Sample size? (135 comments)

A sample size of one, seems a bit short of that needed to generalize to all other comets... 8-P

5 days ago

Utilities Face Billions In Losses From Distributed Renewables

cwsumner Re: Predictions (280 comments)

Why the hell is that unfortunate? Utilities should be nationalized. ...

Corporations (and Utilities) are separate from the Government so that they have an incentive to keep an eye on each other. If they are nationalized, then they are all one and there is no one left to keep an eye out.

Besides, what gives you the idea that the government doesn't want to make a profit even bigger then the corporations? 8-P

about two weeks ago

Comcast Sued For Turning Home Wi-Fi Routers Into Public Hotspots

cwsumner Re:Comcast Business Class (291 comments)

Most antennas turned for 2.4 Ghz are shorts to a ground plane.

For a DC OHM meter, but not for the RF signal.

By the way, you can probably get a "dummy load" for that cable connector and frequency band , on the web.
Or make one yourself, if you can find a 50 ohm bulk carbon (old style) resistor.

about two weeks ago



WristWatch Sliderule: Casio Archive

cwsumner cwsumner writes  |  about 3 months ago

cwsumner (1303261) writes "I ran across this in the Casio support site old products archive: A manual on how to use a wristwatch with a bult-in mechanical sliderule! For those who are to young to remember, a sliderule is a calculator from back before they had calculators.

And get off of my lawn! 8-)"

Link to Original Source

DARPA releases catalog of open project information

cwsumner cwsumner writes  |  about 10 months ago

cwsumner (1303261) writes "DARPA has invested in many programs that sponsor fundamental and applied research in areas of computer science, which have led to new advances in theory as well as practical software. The R&D community has asked about the availability of results, and now DARPA has responded by creating the DARPA Open Catalog, a place for organizing and sharing those results in the form of software, publications, data and experimental details. The Catalog can be found at http://go.usa.gov/BDhY."

The sum of all of the positive numbers is -1/12 (!!?)

cwsumner cwsumner writes  |  about a year ago

cwsumner (1303261) writes "A few weeks ago the Numberphile website posted a short video. The video discussed an "astounding" sum and got considerable press (the video has 1,523,719 views so far). It appeared on both Slate and 3QD. The sum? It's:
        1+2+3+4+5+6+7+... = -1/12"

Link to Original Source

M-1 Sales blocked by State Dept

cwsumner cwsumner writes  |  more than 4 years ago

cwsumner (1303261) writes "Obama Administration Reverses Course, Forbids Sale of 850,000 Antique Rifles.
The South Korean government, in an effort to raise money for its military, wants to sell nearly a million antique M1 rifles that were used by U.S. soldiers in the Korean War to gun collectors in America.
The Obama administration approved the sale of the American-made rifles last year. But it reversed course and banned the sale in March ââoe a decision that went largely unnoticed at the time but that is now sparking opposition from gun rights advocates.

Link to Original Source


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