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Comment: What's the point? (Score 1, Insightful) 500

by jeff4747 (#47742651) Attached to: If Java Wasn't Cool 10 Years Ago, What About Now?

The problem is what's the point of Java?

If speed is absolutely critical, you're going to go with C/C++/ASM/whatever native-compiled-language works well for your problem.

If speed is not absolutely critical, there's plenty of "scripting" languages that get the job done more easily with less code. And if you're talking about something cloud-based, you can probably handle the lower speed of these options by adding another server node.

Java seems to be in the middle ground where it's more cumbersome than the "scripting" options, yet slower than the "native" options. Leaving not much of a reason to choose it in the vast majority of cases.

Java just doesn't seem to have much a a role today beyond "Google decided to use it for Android apps".

Comment: Re:But... (Score 1) 193

by jeff4747 (#47742193) Attached to: Facebook Experimenting With Blu-ray As a Storage Medium

You either need a giant bank of HDDs to store a snapshot of the data before it's written to tape, or a system that can handle large inconsistencies in data caused by the slow write speed.

You'd still need some inconsistency handling for Blu-ray, but it's a lot faster than tape so there's a lot less to handle.

Comment: Re:But... (Score 1) 193

by jeff4747 (#47742179) Attached to: Facebook Experimenting With Blu-ray As a Storage Medium

Maybe he was just smart enough to figure out that you don't have to power HDDs when they aren't in use either, and whomever said they do is an idiot.

5 Blu-ray drives, autoloader with thousands of disks. When not operating, you are powering the SATA-or-similar interface for 5 drives and 1 autoloader.

2000 HDDs. When not operating, you are powering the SATA-or-similar interface for 2000 drives.

2000 > 5 + 1.

I know! Let's pay people to go unplug the 2000 drives. That'll make it cheaper!!!

Or we'll kill power to the entire cabinet, that way we'll have no clue how many of the HDDs are still at all operable. It'll be so much more exciting!

Even better, we can use the suggestion repeated over and over again to use laptop drives, with MTBF 1/1000th of an "enterprise" drive. That'll save thousands in power, while paying tens of thousands in maintenance personnel.

Comment: We get cancer because we have linear DNA (Score 1) 185

by jeff4747 (#47725779) Attached to: New Research Suggests Cancer May Be an Intrinsic Property of Cells

The enzymes that copy DNA need a little bit of DNA past where they are "writing" to hang on to. As a result, the enzymes fall off before they reach the end of our linear DNA. Every single time one of your cells replicate, it loses a little DNA.

Eventually, you're going to cut off something important. Like genes regulating cell division.

Comment: Well, now I know I don't need to read the book. (Score 1) 27

Thanks to this part:

In chapter 10, the book details how Iraqi insurgents viewed Predator drones video feeds. Woody Allen said that eighty percent of success is just showing up. In this case, all the insurgents had to do was download the feed, as it was being transmitted unencrypted. Very little cyberwarfare required.

When the drone was being designed, the designers used security by obscurity in their decision not to encrypt the video feed. They felt that since the Predator video feeds were being transmitted on frequencies that were not publicly known, no access control, encryption or other security mechanisms would be needed.


First, the Predator's video feed was not encrypted because encryption software and keys are classified. As a result, sharing those keys with coalition forces requires a mountain of paperwork. And sharing with one country doesn't mean you can share with another, leading to even more approvals.

Second and more importantly, encrypting the feeds also requires frequently updating security keys for soldiers in the middle of a war zone. That's not a very good idea, since soldiers can be cut off, and encryption gear can be captured.

Finally, encryption is of little value for the information in the data feed - the enemy forces are well aware of where they are, and will learn very shortly that they were being targeted.

Comment: Re:Free points! (Score 1) 667

by jeff4747 (#46554935) Attached to: Creationists Demand Equal Airtime With 'Cosmos'

So you claim "paying attention" is a means to avoid being born with a genetic disease.

Also, the law made a liar out of Obama. Either he didn't know and lied because he wasn't told about the details and content of the law or he knew and he's exactly as evil and deceitful as people believe.

Well, we've already established you're a moron for thinking "being careful" means you won't be born with a genetic disease. Or develop cancer.

The reason you're a moron here is the reason those people couldn't "keep their plan" is they already dropped their old plan. Insurance companies routinely re-write the plan every single year, which creates a new insurance plan. These upset people were already on a new plan after the deadline for keeping your old plan passed.

The only thing Obama should have done is included "And your insurance company wants to offer it" to the quote.

And what do I get for my trouble of paying for affordable healthcare I never used for all these years? QUADRUPLE THE RATE. Thanks a lot Obamacare.

Given your poor reasoning skill so far, I'm going to guess that your nice, cheap plan actually sucked. Probably covered almost nothing with a very low lifetime cap. The kind of plan that people think is a great deal until they get unlucky and have to really use it.

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