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Comment Re:Luddite solution (Score 1) 156

The problem is that productivity is much harder to quantify than $/sqft. Most people who want to or succeed in forcing these open floor plans on others prefer to take easy numbers, like that $/sqft, or lines of code/hr, as estimates for what things and people are worth over things like code quality or worker productivity and morale.

Comment Re: TL;DR (Score 1) 108

No, from an outside perspective it's never inside the event horizon. Only from the perspective of the matter entering the black hole does it cross. Saying "by then it's well within the event horizon" is simply not accurate from an outside perspective. No data collected from Earth will ever correspond to a reality in which the object has passed the event horizon.

The more I think about your post here, the more wrong it sounds to me. The only way to conclude that an object has passed the event horizon would be to observe the absence of radiation from that object. And that definitely occurs in finite time, since photons are discrete. See here, which offers the following explanation:

Now, this led early on to an image of a black hole as a strange sort of suspended-animation object, a "frozen star" with immobilized falling debris and gedankenexperiment astronauts hanging above it in eternally slowing precipitation. This is, however, not what you'd see. The reason is that as things get closer to the event horizon, they also get dimmer. Light from them is redshifted and dimmed, and if one considers that light is actually made up of discrete photons, the time of escape of the last photon is actually finite, and not very large. So things would wink out as they got close, including the dying star, and the name "black hole" is justified.

As an example, take the eight-solar-mass black hole I mentioned before. If you start timing from the moment the you see the object half a Schwarzschild radius away from the event horizon, the light will dim exponentially from that point on with a characteristic time of about 0.2 milliseconds, and the time of the last photon is about a hundredth of a second later. The times scale proportionally to the mass of the black hole. If I jump into a black hole, I don't remain visible for long.

Comment Re: TL;DR (Score 1) 108

No, from an outside perspective it's never inside the event horizon. Only from the perspective of the matter entering the black hole does it cross. Saying "by then it's well within the event horizon" is simply not accurate from an outside perspective.

The problem is you're having this argument while not taking into account the problems with discussing "simultaneity" in general relativity. One might argue, by this logic, that black holes never really exist (even though we seem to observe them, or at least clear evidence of their effects), or that they could never grow (even though we could see them getting bigger in finite time).

While some people are happy to just argue for those things, e.g., that black holes never really exist, it gets at a deeper epistemological question of what sort of observation is necessary to prove something "exists." We infer the existence of a lot of things by their effects, even if we can't observe them directly. For very long periods of time, black holes do exist according to that latter definition.

No data collected from Earth will ever correspond to a reality in which the object has passed the event horizon.

That's true in the sense that there is no visible event of an object crossing the event horizon in finite time.

But, on the other hand, we can also observe changes in the black hole occurring in finite time (formation, growth, evaporation), which seems to imply actual travel across the event horizon. It's complicated to explain why both such things are possible, though this answer seems to get at some of the problems.

Which is why there's no information paradox: the information is never in an unreachable state from any perspective.

That's somewhat true, but it's a somewhat different question to determine what it means for a distant observer to judge "whether something is inside the event horizon." Do we mean:

(1) "I visually saw that thing go inside the event horizon" (false -- obviously, since the definitely of "event horizon" precludes observation of such a thing)

Or

(2) "That black hole appears bigger than it did a billion years ago, so it must have absorbed mass from that thing" (could be true)

Personally, I think (2) would count as "data collected from Earth [that] correspond[s] to a reality in which the object has passed the event horizon."

Comment Re:Subscription or no? (Score 1) 374

They will get something in return. Windows has an app store now. Like mobile operating systems that are generally free, they can monetize it other ways.

Microsoft already gives Windows away for free. OEMs making devices with screens under 13" can get a free copy of Windows 8. That's the only reason you can get a cheap Windows 8 tablet now, otherwise it would still be a 100% Android market.

Comment Re:Free.. (Score 1) 374

You get a .iso that you can install again as many times as you like, indefinitely. You also get a license code that you can use, according to Microsoft, for the lifetime of Windows 10.

$149 for OEM Pro is the standard price that Windows has been forever. The only people who get it cheaper are OEMs with special deals. Anyone selling it cheaper has bankrupt stock or something like that.

Comment Re:Seems to Be a Pattern of Behavior (Score 3, Insightful) 384

Look at the amount of pushback it took to defeat Beta and Bennet Hasselton.

I was actually quite surprised at how responsive the owners have been on those two issues. They clearly invested a lot of money and time into beta, and I dread to think what kind of favours Bennet was offering, but in the end they listened to us. I really didn't think it would happen, I expected beta to become the only option and my beloved (in an abusive partner kind of way) Slashdot die a slow and painful death.

So kudos for listening. And yeah, I can buy the weekend excuse. Come on, this is Slashdot, the "editors" seem barely literate at times and can't remember posting the same story a mere 24 hours previously. Never attribute to malice what can be adequately explained by incompetence.

Comment Re:trashdot is at it again (Score 3, Insightful) 108

Potty mouth zero-content sniping comments and Dice troll crap.

I absolutely agree that GP's comment is a bit of hyperbole. But that doesn't mean he doesn't have something of a point.

So a science article has stunning visuals and not a single damned equation

I'm okay with nice visuals if they're advertised and discussed clearly. They're not here.

Of course it is relevant and interesting to speculate what black holes look like.

Except that's not what the title or TFS implies. They ask "Do black holes have a shape?" And the answer is clearly simple -- spherical or nearly so.

Done.

Posing that question to anyone who knows anything about science probably would cause a reader to wonder -- "Hmm, are there more exotic shapes to black holes I haven't thought of? Why would those exist?"

But TFA is not about that -- in fact, it's about basic phenomena that anyone who knows anything about black holes would already be familiar with, like accretion disks and the fact that light gets distorted around black holes.

TFA is not actually about the shape of black holes themselves. It's about the shape of other phenomena that occur around black holes, or the temporary shifts in such phenomena when black holes merge or whatever. And while it has pretty pictures, nobody who has even read one book on pop science astronomy will learn any new facts from it.

(And, oddly, TFA isn't aimed at a new audience either, since it doesn't really explain basic facts like why we see the accretion disk but not the black hole or anything basic like that.)

It's primal because they're the most perilous things yet conceived and yet no one has actually 'seen' one. Even more disturbing, the physics claims we never could actually see them, only their effects. So we become curious about those effects. Not just from idle fancy, we instinctively feel the need to know how they may appear to us, no matter how unlikely that they would, because they are dangerous.

NO -- THEY ARE NOT "DANGEROUS."

You must be one of those people who think of black holes as some sort of giant vacuum cleaner going around and sucking up stuff around the universe. Sorry -- they don't work that way. They have gravity which works just like any other star or other large mass. You could have a stable orbit around them, for example (obviously at a safe distance).

They're only "dangerous" if you went inside one. But if that's your criteria, so are stars. So is the planet earth with its molten rock interior.

Your post is spreading the exact kind of ignorance that Slashdot should be committed to stomping out.

If TFA were an article that served as an intro to black holes and actually addressed some of that BS you're spouting about how "disturbed" everyone must be about things that are supposedly "dangerous," I'd be fine with that. But it's not. If TFA were an article that actually had some interesting noteworthy science about black holes, I'd be fine with that. But it's not.

And if TFA is just an article about pretty pictures (which it is), then just advertise it as such. And make the title accurate -- something like "What do we see when we look toward a black hole?"

TL;DR: THAT'S why GP is right to be upset -- not because the article is light on facts, but because it's misleading about the fact that it is uninformative (and only about pretty pictures), and it presents itself as tackling questions which it does not.

Comment Re:Douch move for sure on SF (Score 3, Insightful) 384

Aren't we all smart enough to turn off the adware during install?

No -- most people just keep clicking "OK" until the install is finished. Just like most people keep signing pages or initialing forms when presented with a bunch of paperwork... they stop reading the details.

The number of people who actually stop and read everything they sign is similar to the number that consider all the options during install scripts -- and that number is VERY SMALL.

(Small anecdote -- quite a few years ago I signed the rental agreement for my first apartment. I was told to initial each of the 10 pages or so and sign the final page. I stopped and read the thing before doing so. My landlord -- who managed something like 40 apartments and had been doing so for a couple decades -- said he could only recall one other person who read the whole rental agreement before signing. And I actually discovered some really interesting rental policies while doing so.)

Also, more on point -- there's the rather obvious evidence that companies wouldn't bother bundling adware if no one ever installed it.

I even know some old people who turn off "add-ons" that they don't need.

And I even know many young people who don't seem to pay any attention while installing and end up with all sorts of weird "add-ons" and don't know how they got there. What's your point?

Patents

Khan Academy Seeks Patents On Learning Computer Programming, Social Programming 97

theodp writes: When it announced its brand new Computer Science platform in August 2012, Khan Academy explained it drew inspiration from both Bret Victor and GitHub (SlideShare). Still, that didn't stop Khan Academy from eventually seeking patents on its apparently Victor-inspired Methods and Systems for Learning Computer Programming and GitHub-inspired Systems and Methods for Social Programming, applications for which were quietly disclosed by the USPTO earlier this year. Silicon Valley legal powerhouse Wilson Sonsini Goodrich & Rosati, which provides a pro bono team of 20+ to assist billionaire-backed Khan Academy with its legal needs, filed provisional patent applications for KA in August 2013 — provisional applications can be filed up to 12 months following an inventor's public disclosure of the invention — giving it another 12 months before formal claims had to be filed (KA's non-provisional applications were filed in August 2014).

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