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Study: Red Light Cameras Don't Improve Safety

clovis Re:ridiculously bad summary (234 comments)

I've been driving for a few decades and have seen many serious injuries and fatalities, but not a single serious injury or corpse in a rear-end crash...

You've never driven in heavy stop-n-go traffic on the freeway in SoCal then. I have seen cars so smashed you could not tell what the make or model of the vehicle was; sadly I saw a fatality just this summer, a mother and her kids on I-5; people just don't realize that drivers will slow and change lanes to take the exit at Camp Pendleton Traffic will back up there all the way up to the freeway lane.

Not sure why you want to believe that a rear-end accident is nothing to worry about.

Good point - I didn't mean to suggest that rear end crashes are nothing to worry about - Indeed they can be serious. Whiplash is the cause of thousands of paralyzed people every year. I was only pointing out the relative frequency of serious injury in my experience comparing rear-enders to t-bones.

FWIW, I have driven SoCal traffic and it does indeed sux. My previous employer put me in a West Covina motel to commute almost into L.A. for 1-2 months every year for many years.
I commuted across Atlanta for several years as well. Comparing the two, I find that Atlanta has a much higher level of ass-holeitude on the Interstates than L.A area, but, and I can't say why, I think the Valley's traffic is more unpleasant. Maybe I'm comparing a-holes to morons.

3 hours ago
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Cuba Says the Internet Now a Priority

clovis Re:Tiny Island (79 comments)

It is a tiny island. The solution is 4G wireless everywhere and 4G to wifi ports as public endpoints. There will have to be fiber to the towers, but that is a whole bunch simpler if the build-out is done in a grid pattern. Since Cuba is a dictatorship, they can get permits for anything! Someone will have to build a fiber line to Cuba and where it comes from is the political nit.

Cuba is larger than Hungary, or Austria, or Portugal, or Ireland to name a few.

I say give them Comcast! If they don't all hate us now, then they soon will.

9 hours ago
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Study: Red Light Cameras Don't Improve Safety

clovis ridiculously bad summary (234 comments)

"[W]hile right angle crash incidents have been reduced, rear-end crashes that resulted in injuries went up 22 percent." Chicago officials recently claimed that the cameras led to a 47% reduction "T-bone" injury crashes, using that statistic as evidence that the program is worthwhile. But the study's authors, who "accounted for declining accident rates in recent years as well as other confounding factors, found cameras reduced right-angle crashes that caused injuries by just 15 percent."

So the article says rear-end went up 22% and T-bone went down 47%. You have to be suspicious whenever you see a news article that says x went down by y%.
per cent of what? What were the base numbers?

Here's some example situations to show why I say that.

suppose before red light camera we had 100 rear-end crashes and 10,000 t-bone crashes at the intersection (all with injuries)
suppose after red light, we have 122 rear-end crashes and 5,300 t-bone crashes. That's 22% rear-end up and 47% t-bone down
But, the total number of injuries dropped 4,678. That's good isn't it? Redlight cameras must be great!

Or, suppose this:
before red-light camera, 10,000 rear-end and 100 t-bone w/injury
after red-light camera: 12,200 rear-end and 53 t-bone w/injury again, 22% increase in rear-end and 46% decrease in t-bone.
so we had an increase of 2,153 injuries total. Oh my, red-light cameras are killers, aren't they?

I used a wide disparity in the numbers to make my point: you cannot make a useful comparison between percent changes in numbers of two different measurements without knowing the base numbers. That is covered in your freshman "Lying with Statistics 101" class.

So, I read the article in the Tribune (it's free if you give them your email address and live out-of-zone)
If you read the Tribune article (and the accompanied "How the Red Light Camera Study was Done" you may come away with a quite different view than the slashdot summary or the ArsTechnica summary. The Tribune article is not as ridiculous as the slashdot summary.

The article does indeed have some raw numbers:
Quoted from the Tribune:
"In raw numbers at the 90 intersections included in the study, the researchers concluded the cameras prevented as many as 76 right-angle crashes and caused about 54 more rear-end injury crashes. The study said that without the red light cameras about 501 angle crashes would have occurred and only 425 were reported. It also said that there were 296 rear-end injury crashes, and there would have been only 242 had the cameras never been installed."

I've been driving for a few decades and have seen many serious injuries and fatalities, but not a single serious injury or corpse in a rear-end crash.
If you give me a choice between trading 76 t-bones crashes for 54 rear-end crashes, I'd take those numbers. As many other posters have observed, t-bone crashes are much more likely to result in serious injuries and deaths than rear-enders.

The two Tribune articles also covers some of the crookedness associated with Chicago's use of the cameras. They are both a good read and covers a lot of why you should be careful about these numbers and problems associated with the data.

yesterday
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Schneier Explains How To Protect Yourself From Sony-Style Attacks (You Can't)

clovis Re:Sure... (328 comments)

3) And I've worked wit pyro guys who I KNEW were perma-stoned.

Do you happen to know if they're hiring?

2 days ago
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Scientists Discover That Exercise Changes Your DNA

clovis Re:What does this mean...? (56 comments)

Probably not,
I may be wrong, ( and please correct me if I'm wrong ) but the spermatogonium you start out with duplicate themselves through your life and the only mutations come from copy errors during the mitosis and meosis stages; toxic chemicals, radiation and so on.

I don't believe the methylation of DNA in muscle (or any other) cells can migrate to the spermatogonium. Nor can any other DNA change that occurs elsewhere in the body migrate into the reproductive cells.

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

clovis Re:So, correlation CAN mean causation? (136 comments)

There can't be causation without correlation.

That is an interesting statement. I would love to see some proof of that.

Wouldn't a one-shot event with a delayed consequence have causation without correlation?
I speculate that there can't be correlation between non-repeating, non-simultaneous events.

You are correct, it is possible to have a causal relationship that does not result in a correlation.
This occurs if the consequence of the cause has a mediating factor occurring before the consequence, and the mediating factor varies in some way that is not dependent upon the causal action.
Here's a simplified example:
There are causes that make stock market prices vary, but the direction of the price depends upon how the information regarding the event is presented.
Falling oil prices cause oil company share prices to vary, but whether they rise or fall depends upon how the news media presents the cause and expected outcome - something that may depend upon political factors (Let's punish Russia!), or whether it is presented as "the sky is falling" or "buy opportunity" which may be influenced by the news reporting advertiser's needs.

3 days ago
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Blade Runner 2 Script Done, Harrison Ford Says "the Best Ever"

clovis Re:I'm waiting for Buster Friendly (299 comments)

I'll wait for Bennett's concise piece on the subject and how it relates to the classic Burning Man Ice Problem.

No ice for you!
Next!

about a week ago
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Blade Runner 2 Script Done, Harrison Ford Says "the Best Ever"

clovis I'm waiting for Buster Friendly (299 comments)

Harrison Ford apparently thinks the script is "the best thing (he's) ever read."

I'll wait for Buster Friendly to weigh in on the truth of that.
In the meantime, just go and do your task, even though you know it's wrong.

about a week ago
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Time To Remove 'Philosophical' Exemption From Vaccine Requirements?

clovis Re:No (1050 comments)

I recognize that vaccinations save tens of thousands of lives every year: 100 deaths prevented from chicken pox; 400-500 deaths from measles; 1,000 from polio; over 15,000 from diphtheria. And let's not forget the millions of others who suffered from these diseases without dying. Without a doubt, vaccines have been one of the most brilliant inventions that have made an incredible positive improvement to the quality of life in our society.

But our body is our own. Period. We cannot cross this line. If someone conscientiously objects to a treatment, it is their natural right to decline it.

And if we violate this tenant even in the name of vaccinations, it can be violated any other way "for the greater good." And that's a very, very dangerous precedent to make.

I quit agree. vaccinations should be voluntary.
And those people who don't want to participate in a civilized modern society can move to Africa or someplace where you won't be imposed upon by these rules..
I know it sounds like the "love it or leave it" trope from the 60's, but I'm serious. If people want to have the benefits of a modern society, then they should participate in it or leave. We already have enough parasites of all kinds.

about two weeks ago
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US Navy Authorizes Use of Laser In Combat

clovis Re:This might alienate anti-ISI* Muslims. (225 comments)

One of the religious prohibitions in Islam is making war with fire.

If this is used it will be interesting to see the effects on recruiting by the Islamic State and other anti-US organizations among those Muslims who are currently either opposed to them or unaligned.

Also: How do you keep a 30 kW laser, at any frequency, from blinding everybody in the general direction of the target? The last I heard, weapons that blind are banned by the current "laws of war" as recognized by the western powers - and that's been the major impeidment so far to deploying laser (and other directed energy) weapons. Has something changed? Or did the current administration just decide to play with the new toy despite past promises to the other kids?

Re ban on blinding weapons. Here's the Geneva Conventional protocol on Blinding Weapons:
https://www.icrc.org/ihl/INTRO...
Article 3:
Blinding as an incidental or collateral effect of the legitimate military employment of laser systems, including laser systems used against optical equipment, is not covered by the prohibition of this Protocol.

about two weeks ago
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Orion Capsule Safely Recovered, Complete With 12-Year-Old Computer Guts

clovis Re:Probably not (197 comments)

In fact, its computers and its processors are 12 years old

They word it like NASA is dumpster diving for its flight computers these days. The CPU may be from what was new 12 years ago, but I seriously doubt the physical unit is actually 12 years old.

It's also hardened against radiation. I would be willing to bet that any processor in these systems will still be functional long after most newfangled home CPUs are long dead. These flight computers will be remain functional in an extremely harsh environment longer than any home CPU would last. Even with how pampered home processors are in comparison.

If those old computers were any good, then the Voyagers would still be working.
Oh wait ...
http://voyager.jpl.nasa.gov/

about two weeks ago
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Pizza Hut Tests New "Subconscious Menu" That Reads Your Mind

clovis powerful, it says (186 comments)

I was dubious until I read this sentence.
"The menu then uses a powerful mathematical algorithm to identify, from 4896 possible ingredient combinations, the customer's perfect pizza."

When I found out that it wasn't just any mathematical algorithm, but rather a powerful one, then I knew that this would be the ordering technology for me.
The only catch seems to be that the end result will be always be a Pizza Hut product.

about three weeks ago
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Ask Slashdot: Making a 'Wife Friendly' Gaming PC?

clovis Re:Don't fight it (720 comments)

Simple: women aren't built like men, to communicate simply and honestly BY MALE STANDARDS. INB4 "you misogynist" INB4 "you neckbeard" etc etc etc ad nauseam...

After enough direct face-to-wall repeated contact with the above, men begin to see the pattern and make choices / decisions based on it, whether that be passive/aggressive shit or simple setting of boundaries.

Q
E
D

There is no QED in what you said. Your proof fails by counter-example.
Most, in fact nearly all of the women I know are as straightforward and honest as any person.
Just for starters, if you spend some time (as I did in my old job) with women in the US military, you would have many very clear-cut counter-examples. But other places I've worked and associated with also were populated with women who are not as you describe ... having "passive/aggressive shit". Female doctors are another example as well as the female sys-admins I've known.

If you don't know any women who communicate simply and honestly BY MALE STANDARDS, that is because you either don't know many women or because your prejudices prevent you from recognizing simple and honest communication from a female.

about three weeks ago
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Interviews: Ask Adora Svitak About Education and Women In STEM and Politics

clovis Re:A message to Adora Svitak (155 comments)

At 17 years of age, you do not have enough life experience to say anything of real importance about anything involving the greater issues facing society.

I disagree completely with your uncalled-for insult.
Most human learning is done through vicarious experience and not through "life experience". That is to say vicarious experiences such as listening to people discuss their lives and recalling stories of how others live, as well as reading literature, news reports, scientific journals and so on.
Fortunate children learn and grow from association with adults who are living an intellectually engaged life.

I maintain that "life experience" has little relevance to being able to say anything involving the greater issues facing society.

If you had said "most 17 year olds ... have nothing of importance to say etc", I could buy that. But that is not what you said, and you directed your statement to a specific person.
By directing it to a specific person, and for your statement to be anything more than thoughtless insult, you must show how her published works and TED talks how your statement is true.

Furthermore, do have you in mind some specific "life experiences" that no 17 year old could understand well enough to discuss unless they experienced it in person? If so, what are those experiences?

about three weeks ago
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Interviews: Ask Adora Svitak About Education and Women In STEM and Politics

clovis Re:A message to Adora Svitak (155 comments)

At 17 years of age, you do not have enough life experience to say anything of real importance about anything involving the greater issues facing society.

I disagree completely with your uncalled-for insult.
Most human learning is done through vicarious experience and not through "life experience". That is to say vicarious experiences such as listening to people discuss their lives and recalling stories of how others live, as well as reading literature, news reports, scientific journals and so on.
Fortunate children learn and grow from association with adults who are living an intellectually engaged life.

I maintain that "life experience" has little relevance to being able to say anything involving the greater issues facing society.

If you had said "most 17 year olds ... have nothing of importance to say etc", I could buy that. But that is not what you said, and you directed your statement to a specific person.
By directing it to a specific person, and for your statement to be anything more than thoughtless insult, you must show how her published works and TED talks how your statement is true.

Furthermore, do have you in mind some specific "life experiences" that no 17 year old could understand well enough to discuss unless they experienced it in person? If so, what are those experiences?

about three weeks ago
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UK Police To Publicly Shame Drunk Drivers On Twitter This Christmas

clovis Re:Slander? (256 comments)

An arrest is not the same as a conviction. IANAL but I think this would be slander (and the police could be sued in civil court) if this happened in the USA.

Generally speaking, no. Due to sovereign immunity you can't sue the police (or the courts) for slander if they're acting within the scope of their duties.

about three weeks ago
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Ask Slashdot: Making a 'Wife Friendly' Gaming PC?

clovis Re:Simple (720 comments)

Another idea is to scrap the case and make a living room friendly case out of an old wooden sowing machine. (find it at a thrift store) Look for one with a nice antique look and gut it out. Again one fan should work. May take some metal work to get parts of a case to fit in it.

Best suggestion yet. Definitely an idea worth stealing.

about three weeks ago
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Ask Slashdot: Making a 'Wife Friendly' Gaming PC?

clovis Re:Don't fight it (720 comments)

Just after getting married it probably the last "major new setting of rules".

If the PPer want's to stand strong for something that is important in his life, this is the right moment. After all, that's exactly what his spouse is trying to do - kick gaming from her view. The living case of "I'll format him when we get married".
If he is ok with that - he should listen to the first poster.
If he's not - he should set some rules / code of conduct with her. For example this may consist of:
1) week days and annual days (eg. their anniversary) without gaming
2) things that should be done before around home he could begin gaming
3) no interrupting him every 2 minutes where there is no major fire
4) "magic escape word" for both - for emergency, where she REALLY needs him / where he REALLY needs half an hour resetting his brain
5) ....

All that you said is just BS if she meant what she said: "It's too noisy and ugly for the living room".
Why do so many people assume that this guys wife is a liar?

about three weeks ago
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Shale: Good For Gas, Oil...and Nuclear Waste Disposal?

clovis Re:process it in the biggest nulear reactor we hav (138 comments)

Well, sending spent fuel into orbit isn't a bad idea, but it should be enclosed in a thermionic generator when you do it. You don't need Plutonium for that if you don't want to use a minimal weight for a long period of time. If ;you're willing to use a bit more weight, or run out of power a bit sooner, there are lots of other choices.

Hmm, thermionic generator could be handy for moon bases, if we were to drop them there.

about three weeks ago

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