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User: dkf

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  1. Re:Dead cat bounce on Investors Bailing On SCO Stock, SCOX Plummets · · Score: 1

    Then it is over and the patent wars will move from saber rattling and into the shooting phase. With sabres, you don't shoot people. You stab or slice. Preferably from horse-back...
  2. Re:Law not just evil but also dumb on Strict German Computer Crime Law Now in Effect · · Score: 1

    But unlike gun control, where restricting guns (at least theoretically) makes it harder for criminals to obtain them, [...] One minor point here. The real reason for having gun control is to restrict the access of crazies to things with which they can cause large scale damage with. In the UK at least, it was recognized when the start of the current control regime was brought in that it was unlikely to have much effect on criminal access to guns, but it has had the effect of preventing a repeat of the Dunblane massacre.
  3. Re:Let's blame Microsoft on ATI Driver Flaw Exposes Vista Kernel to Attackers · · Score: 2, Informative

    You do realize that the kernel does not do any signing, that's Verisign's job, right? Even that's wildly inaccurate, and just demonstrates that you're confused as to how digital signature systems (and other things based on a PKI too) work.

    Verisign just signs the driver author's certificate, and even then just to say "these guys are who they say they are, and they're doing code signing with the key matching this certificate". They most certainly say nothing at all about the correctness of the drivers; that's up to the driver author (and maybe Microsoft too).
  4. Re:My quack-o-meter is beeping on Optical Solution For an NP-Complete Problem? · · Score: 1

    There is no such thing as "non-polynomial time". Yes there is. It's usually called EXPTIME (or one of its big brothers, EXPSPACE, EXPEXPTIME, etc.) You don't tend to see them all that often outside a few research areas because they're very badly behaved on real-world problems. Not that NP has anything to do with that. To be in NP, you have to have a polynomial-complexity algorithm for checking a candidate solution to a problem.
  5. Re:exponential photons == not practical on Optical Solution For an NP-Complete Problem? · · Score: 1

    A back-of-an-envelope calculation indicates that it will take around 100 billion billion years (or just a bit short of 9 billion times the age of the universe) of the entire photon output of our galaxy to produce enough light to solve the N=50 problem. Now, my calculation is wildly inaccurate but I'd expect it to be no more than 2 orders of magnitude out; that's a seriously large amount of computation whatever way you cut it!

  6. Re:You forgot... on RIAA Campaign Against Students Hits Stormier Seas · · Score: 1

    ./configure --no-evil

    (OK, it tends to fail silently during execution, but that's the correct option.)

  7. Mod Parent Up on Storm Worm Rising · · Score: 1

    Using subversion (or other similar SCM) is absolutely the right solution for this, especially if you ever expand to include a third location or any other developer.

    Otherwise, a thumb drive is a good investment and you can just make it part of your standard pocket contents (like house keys and wallet).

  8. Re:A counter example on New Explanation For the Industrial Revolution · · Score: 1

    when people are hungry, they compensate with sex. Time for many of us to go on a diet, I think...
  9. We need this, now! on DNS Rebinding Attacks, Multi-Pin Variant · · Score: 1

    ... so that we can redirect links to the paper explaining all to a server that isn't slashdotted...

  10. Re:Just keeping up with the US press... on Forensic Analysis Reveals Al-Qaeda's Image Doctoring · · Score: 2, Informative

    Steel doesn't melt (~2700 degrees F) at temperatures reached by puddles of burning petroleum fuel (~1200 degrees F) You should be aware specifically that while it takes a great deal of heat to melt steel, it takes a lot less to soften it a lot. After all, without that particular feature there wouldn't have been blacksmiths producing steel going back thousands of years (or did you think that the Roman legionaries' gladius was made by casting molten steel?) and hence the fact that a jet-fuel fire softened the steel enough in a high-stress application to cause catastrophic failure is not especially surprising. This sort of thing is a problem in many other buildings made with reinforced concrete that have undergone fires, and is an effect that has been well-known for decades.

    If you're going to be a kook on the topic of the 9/11 collapse, don't use the melting point of steel as part of your argument as it is a factually weak link. It's less damaging to your overall case to ignore this part. :-)
  11. Re:V-chip doesn't *SCREEN* content on FCC to Develop 'Super V Chip' To Screen All Content · · Score: 1

    The v-chip just responds to rating data encoded in the signal and can block or allow showing depending on the parents' choices. Cool, can I use it to block everything said by politicians? Please? Or do I need to install a P-Chip to do that?
  12. Re:Syslog on DSS/HIPPA/SOX Unalterable Audit Logs? · · Score: 5, Informative

    You're not supposed to just use a remote logfile, but a remote logging daemon. Another thing you can do is to send the logging messages over a non-IP connection (e.g. a serial line) so that even a standard network failure won't disrupt the logging and a hacked machine will continue to generate a track-able log. And the last I heard, you can't unsend bits sent down a serial line.
  13. Re:Power corrupts on FBI, IRS Raid Home of Sen. Ted Stevens · · Score: 1

    Reagan has been out of office since 1989.

    Stock market crashed and burned 12 years later. Last time I checked, 12 years after 1989 was 2001, which is a different century. Hence the bursting of the bubble couldn't have been one of the largest crashes of the 20th century, by definition. It does, however, remain to be seen whether it is one of the largest crashes of the 21st century. It'll take a few decades before we can answer that one (again, by definition).
  14. Re:Why would an international conference be in the on US Blocks Entry For German Black Hat Presenter · · Score: 0, Troll

    Except for the UK, he wouldn't even need to show a passport at the border. Not quite. There are still a fair number of internal borders (try travelling to Poland or Hungary...) and the UK does have a border with another country which you can cross without a passport IIRC, being Ireland. (The UK and Ireland are close in a number of other respects too. For example, citizens of one are allowed to vote in the other's national elections when resident; this is the only example I know of where non-citizens are permitted to vote in such an election. I don't think any other pair of EU countries are that close, for example.)
  15. Re:Wrong in so many ways on Don't Overlook Efficient C/C++ Cmd Line Processing · · Score: 1

    Does [perfect hashing] really provide a noticeable performance improvement over an out-of-the-box hash table? Yes, but only if you can pre-compute the hash function and pre-size the table right. That's really quite hard to do; the effort involved is such that it is usually easier to not bother. But if you've got a program that's going to do billions of hash lookups and the keys are well-behaved, it can be a worthwhile optimization.

    Strings (in English or any programming language) aren't generally well-behaved in the right sense though. Not unless your hash function is a crypto-hash, and that's typically quite a bit more expensive in other ways.

    These days, my main criterion for a hash implementation is that someone else wrote it (and wrote it correctly). ;-)
  16. Re:Is this a joke? on Get Ready For the High-tech Beach · · Score: 3, Insightful

    Theft is a huge problem at beaches these days I'd have thought that sand would also be a problem; I can't imagine that it would be very good for keyboards and cooling fans...
  17. Re:Soft-key elevators on Steve Jobs Hates Buttons · · Score: 1

    elevators don't have good feedback to begin with Some do, some don't. Really nice ones have audio feedback too.
  18. Re:Oh, the irony on Malaysia Uses Anti-Terrorism Laws To Stop Bloggers · · Score: 1

    Frankly, I don't see how the incineration of 13 million civilians can, under any value system, not be deemed terrorism. It's not a matter of whether we approve or disapprove, it's a matter of definitions. Genocide is simply a different sort of evil, OK? Just because something is really bad doesn't mean that it's terrorism, just as not everything that is really good is chocolate.
  19. Re:how many data centers? on Multiple Sites Down In SF Power Outage · · Score: 1

    1. Because co-locations are expensive.
    2. Because mirroring content and adding dynamic DNS adds considerable complexity. I.E. more things that can break (The former is a real headache for high traffic/dynamic sites.)
    3. Because maintenance at co-locations can be a bit of a headache.
    4. Because outages like this are actually quite rare
    5. Because co-locations are expensive.
    6. Because people are cheap, lazy and stupid. (Hey, I know I'm certainly both cheap and lazy, and don't feel qualified to comment on the other...)
  20. Re:No... on Are Cheap Laptops a Roadblock for Moore's Law? · · Score: 1

    Very few people want to actually *DO* anything anymore, other than be entertained. Why on earth should I have to do things? Having a computer for the purpose of being entertained seems to me to be a totally valid use for it, and there's all these websites to help out...
  21. Re:First Column! on Are 80 Columns Enough? · · Score: 1

    We have huge displays now, and I'm not using it to view the same 80-column width at 40-point size! Of course not. Put another window looking at a different source file (or documentation, or a browser, or even IRC) beside it instead. Got a second display? Show even more windows side-by-side. (And no, vertical stacking is not a replacement at all...)
  22. Re:Dude, the Great Wall of China is awesome... on Did We Really Need Seven New Wonders? · · Score: 1

    You must be playing Civ3 not Civ4 He was playing Civ2. Later versions didn't have that (oh so wonderful) magic-upgrade power available...
  23. Re:Computer science ? on Forget Math to Become a Great Computer Scientist? · · Score: 1

    Mathematics IS the science in "Computer Science". I respectfully disagree. While CS does draw a lot from Mathematics, it's principally logic that it takes from there and that's arguably got its own history back to at least Ancient Greece. But CS isn't just applied Logic. It also draws a lot from Engineering, there are contributions from all the Natural Sciences, and there's even a fair amount from traditional Philosophy and Psychology. (For example, GUI design is almost entirely related to psychology and has next to nothing to do with mathematics.) There are probably other fields that CS draws from, but you get my drift.

    With that many things coming together, I can't really say anything other than that CS is genuinely its own discipline. (I think it's probably the most significant one to rise in the 20th century; all the other big ones are older, much smaller, or still strongly coupled to a particular parent discipline.)
  24. Re:As if computer science wasn't stunted enough on Forget Math to Become a Great Computer Scientist? · · Score: 1

    Calculus was a required course for CS in college, and I have never used Calculus in my computing, even programming. Ever. Sure, but hardly any schools teach proper logic so proxy subjects/topics have to do. And that's what Calculus is: those who do well at it tend to be the same as those who can grasp logic and actually think in a way that is useful for CS. (Now, if there was any school that taught modal and intuitionistic logic, that'd be really useful...)
  25. Re:Flawed... even down to the analogy. God? on Perpetual Energy Machine Getting Lots of Attention · · Score: 1

    First, the premise that God is separate from his creations implies that God is finite. No it doesn't. The set of positive integers is separate from the set of negative integers, and both are infinite. I suspect that your refutation is a load of cobblers, since the Spinoza argument is using a different definition of "finite". In particular, he was probably taking the viewpoint that "infinite" means that there are absolutely no boundaries at all. By contrast, mathematical infinities relate to the cardinality of sets and it's usually (always?) possible to construct entities that aren't in a particular set (IIRC the assumption that there is a set of all possible sets leads through trivial reasoning to a contradiction.) Given the "no boundaries at all" definition of "infinite", that part of the Spinozan argument is a lot harder to defeat.

    If you're going to hold philosophical/theological arguments on slashdot, please take care with your definitions!