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fafner

2,084 karma · joined September 14, 2012

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fafner··on GNU APL 1.3
> Are APL's typically JITed ?

No.

fafner··on GMP 6.0 release notes
The "side-channel silent" improvements should help improve the security of RSA. Here is a paper about it: https://gmplib.org/~tege/modexp-silent.pdf
fafner··on Steve Jobs's response after getting a Google employee fired.
Google was probably more worried about the potential consequences of breaking the non-solicitation agreement than about Jobs. Breaking it would have meant Apple starting to hire Google engineers as well. And even if they didn't care about this then why start a fight over such a trivial thing?
fafner··on Announcing the C++ FAQ
The FQA is silly and out of date.
fafner··on MH370: A different point of view
What does it take to switch to a new ATC? AFAIK they were in the process of switching to the Vietnamese ATC and in fact the last message was a "good night" to the Malaysian ATC. Could the process of switching to the new ATC mean that they were left without communications in the deciding minutes?
fafner··on MH370: A different point of view
Couldn't a fire in the electric turn off the telemetry minutes before it gets noticed?
fafner··on Did Malaysian Airlines 370 disappear using SIA68/SQ68 (another 777)?
> On the contrary, I think that any such alternative plan to kidnap and interrogate a handful of the Freescale guys would probably seem at least as risky if you described it in some detail, then looked at it with as much scepticism as you've directed at the flight-370 version.

I doubt it because the aircraft simply adds a huge amount of risk and has little benefit. The only two benefits are that they are all in one place and that they are on a vehicle which can bring them out of the country. But the former could certainly be achieved in another way. Where they on a business trip in Malaysia? That would simplify it a lot because you could get them easily in the hotel or even better on the transfer to the airport.

The latter is almost perfect. You hijack the minibusses used by the transfer company. You load up the unsuspecting employees. Drive them to a hideout and either force them with weapons or by using knock-out gas. Wait a few hours until it's night. And then you can drive them to the coast, load them into a small boat, and bring them to a larger vessel waiting off the coast. There are of course risks, like a random police encounter or someone noticing you loading people onto a small boat. But to me it seems they pale in comparison to successfully hijacking an aircraft, flying it unassisted while evading radar to a hidden location, which is far away from any civilians or foreign military infrastructure, getting rid of 220 people, getting rid of a huge aircraft.

But in the end who would be worth all this attention and money? I guess buying off the person you want would be cheaper. If some country wanted to hire the Freescale guys then promising each $1m/yr would probably be cheaper and significantly less risky.

fafner··on Did Malaysian Airlines 370 disappear using SIA68/SQ68 (another 777)?
Yes, really. You are looking at it after the fact. Paying off a pilot who is skilled enough to fly the aircraft evading all radar and land it unassisted at night or early dawn on some remote airbase would be a major expense. Paying someone to kill off the rest of the 220 passengers would be a big challenge as well. And everybody involved would know that and the additional risk and thus demand much more money. You would have to find such an airbase. And you would have people at the airbase to take care of everything, including hiding the jet from satellites. And the airbase would have to be unused and remote. Ditching the aircraft safely into calm waters is even more unrealistic. First of all AFAIK it has never been successfully done with a wide-body aircraft and even in a small-body aircraft it would be a major risk. It would require perfect weather and calm ocean. And it would have happened at night!

There are a ton of risks involved in all of this. How could they hijackers have known that the Malaysian air force wasn't properly looking at its radar? They could have scrambled jets at that point and all of this complicated plan would have been for nothing. What if the flight they allegedly used for the radar shadow would have been delayed or they would have been delayed? What if there had been a military ship with their own radar on an exercise or patrol? After all they flew over one of the busiest water lanes in the world with an active piracy problem. What if ...

You are looking at it after the fact and not from the perspective of someone who had to come up with the plan and evaluate all the risks.

I'm not saying that kidnapping or killing a handful of people on the ground would be easy. But compared to such an unprecedented and skilled aircraft hijacking plan it seems like a piece of cake. Not to forget all the attention that MH370 gets.

fafner··on Did Malaysian Airlines 370 disappear using SIA68/SQ68 (another 777)?
But why not make it public?
fafner··on Did Malaysian Airlines 370 disappear using SIA68/SQ68 (another 777)?
The hijackers would probably want to make it public. It's an insurance for their safety right now. A government might simply bomb the parked aircraft and blame it on a crash or the hijackers.
fafner··on Did Malaysian Airlines 370 disappear using SIA68/SQ68 (another 777)?
It is a lot easier. Of course you would use a ship or even the official Air Koyo flight from KL instead of a van...

The hijacking and stealthily flying it to North Korea are so complex it's beyond ridiculous. There are so many more details which could go wrong and a much bigger international backlash especially from China. And why would they fly back across Malaysia if they wanted to go to North Korea?

fafner··on Did Malaysian Airlines 370 disappear using SIA68/SQ68 (another 777)?
It would be much easier to get a person on the ground instead of hijacking a large aircraft and then magically landing it somewhere without being noticed.
fafner··on Did Malaysian Airlines 370 disappear using SIA68/SQ68 (another 777)?
It would be much much easier to get to any of the passengers while they were still on the ground. Hijacking the aircraft and stealthily landing it somewhere is such a complex plan that it's just too ridiculous.
fafner··on Did Malaysian Airlines 370 disappear using SIA68/SQ68 (another 777)?
Flying the aircraft isn't the only problem in such a complicated plan. So even if the pilot was exceptional it would still require many other highly skilled people. And there would be huge risks at every step. It would be thousands of details to get right. Maybe they were just lucky. But it's far more likely that they crashed somewhere, maybe as the result of the hijacking.

And maybe we'll never know...

fafner··on Did Malaysian Airlines 370 disappear using SIA68/SQ68 (another 777)?
I think it's highly unrealistic. The plan simply involves too many risks. First of all how could the potential hijackers know that the Malaysian military wasn't properly monitoring the radar? There would have been a huge risk of the Malaysian military discovering it and scrambling jets.

The collision avoidance system only works when the transponder is enabled. So flying in the radar shadow of another aircraft would take some extreme skill. And wouldn't they have to adjust their position according to the position of the several radar antennas? What about potential mobile radar systems, e.g., on military ships? It would have also all depended on perfectly finding SIA68. What if it had a two hour delay? Not unlikely on international flights.

Where would they secretly land the aircraft? It takes a more than 1km straight and wide runway. And it has to be remote enough from any town or military installation. But they would have to bring large amount of supplies like jet fuel. (Which they would secretly get where?) They would have to deal with 240 people on board. Someone who would steal such an aircraft is certainly ruthless but ruthless enough to murder 240 people? They would have to hide the aircraft from satellite surveillance. It would take a ground crew to refuel and maintain the aircraft.

All in all there are so many things which could go wrong. And it's very unlikely that a bunch of amateurs could pull it off.

fafner··on Malaysian Official Says Missing Plane Hijacked
3. is really unlikely. Where would you land a Boeing 777 without anybody noticing? The aircraft is too big to land on an improvised or remote runway. And runways which could be used are usually at active airports, near towns, or on military installations.

And why didn't the hijackers contact the authorities by now?

fafner··on Git Integration
The central part of magit is `magit-status'. You do most of the things from there. It even allows you to stage small parts of a diff (like git add -i) simply by selecting the part in the status view and staging it.
fafner··on Git Integration
Emacs supports it for many different vcs' http://elpa.gnu.org/packages/diff-hl.html

And magit is the best git integration I've seen so far: http://magit.github.io/

fafner··on Valve's OpenGL debugger open-sourced
A presentation from the developers about vogl and ToGL http://www.youtube.com/watch?v=45O7WTc6k2Y

The part about vogl starts at around 33 minutes and a demo at 40 minutes.

fafner··on Valve's OpenGL debugger open-sourced
It can capture all OpenGL drawing commands made by an application and then replay it frame by frame. Valve devs gave a presentation about it including a demo. http://www.youtube.com/watch?v=45O7WTc6k2Y The part about vogl starts at around 33 minutes and the demo at 40 minutes.
fafner··on What Are Your GCC Flags?
-pedantic-errors is also a very useful flag.

-Wstrict-aliasing=1/-Wsuggest-attribute= can give good suggestions during development.

Probably not useful for Ag: But I do a lot of numeric stuff so -Wfloat-equal is handy for me. For code using float this should be mandatory: -Wdouble-promotion.

fafner··on Atom
And it's my decision not to use it. Why would I want a non-free (as in beer and speech) editor which reports data to Google, only works on Mac, and lacks any unique features? I don't understand the hype created on HN about it...
fafner··on Atom
And it reports data to Google... http://atom.io/packages/metrics
fafner··on GNU grep-2.17 released: 7x to 10x times faster with multibyte locale
I know people here usually complain about minor release announcements. But

> This release is notable for its performance improvements: we don't often see a 10x speed-up in a tool like grep.

So I think it's quite noteworthy.

fafner··on Git 1.9 Release Notes
smerge-mode or use the emerge diff tool setting
fafner··on W3schools: The Ugly, the Bad, and the Good
The problem is that W3schools contents sucks as well. E.g., MDN is much better in comparison. http://www.w3fools.com/
fafner··on W3schools: The Ugly, the Bad, and the Good
Try to use the MDN instead. It has much better and accurate information. YMMV.
fafner··on Tim Berners-Lee: We need to re-decentralise the web
So you'd rather give up on the open web and turn it into a proprietary system? Just for a seamless experience? Sorry to say this. But that's just plain stupid.

The web is not proprietary, not an app, and only to some extend controlled by the w3c, which is much more than Microsoft, Google, and Apple.

fafner··on Tim Berners-Lee: We need to re-decentralise the web
And that's fine. If they want DRM they should write a proprietary app or plugin. But we shouldn't turn the web into a proprietary app controlled by Microsoft, Google, and Apple.
fafner··on Tim Berners-Lee: We need to re-decentralise the web
Everyday users fail at saving a youtube video. And someone who knows how to rip a youtube video usually also knows about pirate bay or other pirate websites.
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