Yup.. but the theorem only holds(supposedly) if n + 2 is composed of two primes. a+1 and b+1 are by his definition and reasoning even numbers larger than 2 and as such not primes so whatever he is trying to prove really doesn't have anything to do with goldbach conjecture.
Why? This theorem is about adding two primes together whereas pgp is about multiplying them. These two don't have much in common. Factoring a large number to its divisors still remains hard.
Actually read the definition first: Every even number can be represented by the sum of two primes . Now take a deep breath and tell me if a + b + 2 or a + 1 + b + 1 or (a+1) + (b+1) (parentheses to be considered as one number) is the sum of two primes if neither a or b have a twin prime? If they have a twin prime then there is no problem.
n is even and large if the conjecture holds then n = a + b where a and b are prime and n + 2 = a + b + 2 so, n + 2 = a+1 + b+1
Ever heard of twin primes? Such that for some prime a there is a prime a+2. There are infinitely(presumably) many of those. So a + b + 2 could still be a sum of two primes.
Or it could be composed of two totally different primes! Explain why do the primes have to stay the same? This is not a requirement of the conjecture, only a restriction set by you. For n + 2 the composition could as well be c + d instead of a + b + 2.
Maybe.. maybe not. Think Fermat's last theorem. This would be the obvious approach for that too except that a proof was found differently(elliptic curves and all that cool stuff). Primes are a little more trickier to deal with than regular integers, though. Besides, according to the article someone has already proven that all odd integers starting from some sufficiently large number are the sum of three primes. Now just reduce the number to 5, add even numbers and collect million bucks.. think I'll try it tonight on my lunch break.. not.
Which is how many? Sorry, but I think the idea that there is a particular number of lines of code that will trigger copyright laws is something you just imagined.
There'll have to be some kind of a limit that eventually will be determined in court. Maybe it should be related to the function of the lines in question or something else. All code is very similiar and comparing two programs would result in rather large amount of matches. Programmers have a tendency to use similiar variable names(h,i,j,k,l, etc.. for loops) and same structures (hey, it's the programming language imposing these restrictions). Would these (even though unintentional) similiarities qualify as a violation of copyright laws?
What I had in mind originally when posting the comment were the copyright laws concerning the music industry. You can "borrow" a sequence of up to 10 seconds(or something like this, correct me if I'm wrong) without having to worry about lawsuits. Same (sometimes long) sequences of notes or chords do occur in a rather large amount of songs(they just sound better). It would only be logical that same kind of guidelines would apply to source code.
First.. Your patch can include less of the original code than is required for the copyright laws(etc.) to kick in to apply the patch in to the right place. Maybe only line numbers etc. to get a rid of the problem totally.
So suppose you make a mod to Quake. Include less code in your patch than it takes for copyright laws to be effective(or just use line numbers) and license the work using whatever license you want - as such it is not a derivative work. Distributing the patch should be allowed without a question with whatever license. You're merely distributing a way to modify something else. You're not violating the license of the original code in anyway as there is no original code involved.
Now, note that I didn't say anything about applying the patch or the end result - these should be different issues. If someone distributed the original work with the applied patch then there would be trouble. Incompatible licenses etc. would surely take someone to court but this need not be. As long as you distribute the original and the patch separately and let the end users do the patching and keep the result to themselves there shouldn't be issues.
There is one small issue that I'm aware of that could be a problem with the previous reasoning. If the original work is required in order to make the patch in the first case then should the patch be considered a derivative work. Even if the patch doesn't have anything from the original code and the original code is used more as a reference.
In my opinion no. Consider school books, for instance. Those are surely copyrighted and you are not even allowed to make copies of them but when you use the knowledge gained from them to create something it surely isn't considered a derivative work. Why should it be different for source code(essentially a cookbook for the resulting program)?
Take a good look at the front page for slashdot.org. It says: "News for nerds. Stuff that matters." Not "open-source news", not "only free software", not "linux only", not...
Looking at the comments posted it seems that this "stuff that matters" for most of the people reading this. Probably a cross section of groups "geeks" and "diablo players" would be rather large. Accept it and live with it or go someplace else if you don't like it.
Only one nitpick. Most thievs know to cut the phone line before they hurl a rock through your back window. That way your $20000 alarm system can just dial all day long.
Already a couple of years ago I recall seeing security systems with wireless monitoring services. That would just be a slightly modified cellular phone that would do the communications.. Then again an easy solution would be to have a cellular phone jammer, which unfortunately are fairly easy to get.
especially with the horribly ridiculous gas prices recently.
Never been to Europe, I guess? Trust me. Even with close to 2$/gallon gas is still pretty cheap in US. It costs a little less for a liter in Europe than it does for a gallon in US. 1 gal is 3.8 liters so you effectively pay over 3$/gallon in Europe...
So if a power failure cuts off the power to your computer what happens to the hard drive? Does it sense this and move the heads to a safe area or are they stuck over data?
How about when you flip your case sideways. Does that move the heads? What about if you combine the previous two?
How damaging is this to the hard drive?
...just wondering if I should handle my computer more carefully when I upgrade it. Did have some wierd issues with hard drive lately in connection with forementioned activites but they could have been a result of a multiple system crash experiment with some kernel drivers also..
I have known profesional programmers and hobbyists and in my view profesionals are MORE likely to write viruses than less likely.
UH! So you're saying that if we pick a professional programmer the chances that he will write a virus are greater than those that he won't? So over half of all the professional programmers are virus writers? That is a pretty harsh accusation and probably insults most of the people who make a living out of programming..
robot that doesn't know it's a robot.. Sounds like an idea from blade runner to me. And technology was good enough to make that movie about dozen years ago or so..
Yes. This system is fundamentally flawed and nobody at microsoft during the 1.5 years it took to develop this ever thought of this scenario. You should email them with your concerns and they'd probably have to remove the whole Single Instance Store concept. Oh.. if you read the article you find that there is no mention whatsoever about symbolic links.
And yes.. I don't much like microsoft but i hate FUD even more.
I doubt this will work anything like unix hardlinks. Even with the lack of technical detail it seemed more like this could perform linking across network thus really freeing up duplicate space(although, contributing to network traffic).
Microtek Scanmaker X6. This is a parallel port scanner that will work with linux and costs less than 100$ Why? Because it seems to really be a scsi scanner that just works over parallel port and a nice little pportscsi patch to kernel will take care of that minor inconvienience. Check this for more.
I beg to differ. Office is the biggest reason why windows is de facto standard in business world. If microsoft would release office for linux it would really encourage people to switch away from windows.
Maybe for an average home user it wouldn't be much of a difference which operating system office is running on but for business's that have to have licenses for all the running copies of windows it might just start to add up enough.
Linux is cheaper, more secure, easier to customize, extremely network friendly, runs on cheaper hardware and has a nice buzz behind it. Only thing holding it back is an office suite with 100% compatibility with ms office. Would ms really want to jeopardize the sales for their most succesful product. Why would anyone bother with win2k anymore. Maybe next thing that we'll see is ie for linux(I wouldn't mind, unless mozilla really catches up) although I seriously doubt.
Here's what I don't get. If someone can't afford a computer and an internet connection (That's about 300$ to start with and 13.95$/month) then how is this someone a viable target for advertising! I mean how much money can this poor person spend on the products advertised on his screen(to make up for the cost of the computer and the internet connection) if he can't even afford that 300$ computer! This idea doesn't work for poor people. It works for people who have the money, but wouldn't bother otherwise.. Maybe all the poor people got one of these and the advertisers didn't get anything in return(That 300$ they had to spend on the computer).. maybe it got discontinued because of this..
Yep.. this is windows only, but if you read the text carefully you'll notice that they have a Linux C++-tools package coming soon.. Wonder if it'll be free though.
I don't think that single intel processor since the old 486 has been cisc. Certainly not beginning from pentium pro.. Sure they have a cisc instruction set that then gets translated but so does amd.. And amd does have 3dnow that has been in use much longer than sse.
Athlons do outperform pIII's at most of the clock speeds (when a decent cache multiplier can be used) are cheaper and are more readily available. I will be getting one next month..
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Yup.. now just show that there are no two primes that add up to this number..
Yup.. but the theorem only holds(supposedly) if n + 2 is composed of two primes. a+1 and b+1 are by his definition and reasoning even numbers larger than 2 and as such not primes so whatever he is trying to prove really doesn't have anything to do with goldbach conjecture.
because 1 isn't a prime and thus neither a + 1 or b + 1 could be 2. But his theory is totally flawed anyway so big deal..
Why? This theorem is about adding two primes together whereas pgp is about multiplying them. These two don't have much in common. Factoring a large number to its divisors still remains hard.
Actually read the definition first: Every even number can be represented by the sum of two primes . Now take a deep breath and tell me if a + b + 2 or a + 1 + b + 1 or (a+1) + (b+1) (parentheses to be considered as one number) is the sum of two primes if neither a or b have a twin prime? If they have a twin prime then there is no problem.
No it is not.
n is even and large if the conjecture holds then n = a + b where a and b are prime and n + 2 = a + b + 2 so, n + 2 = a+1 + b+1
Ever heard of twin primes? Such that for some prime a there is a prime a+2. There are infinitely(presumably) many of those. So a + b + 2 could still be a sum of two primes.
Or it could be composed of two totally different primes! Explain why do the primes have to stay the same? This is not a requirement of the conjecture, only a restriction set by you. For n + 2 the composition could as well be c + d instead of a + b + 2.
What are you trying to get to? Generating even numbers? even number = 2 + prime + prime(prime > 2).
Maybe.. maybe not. Think Fermat's last theorem. This would be the obvious approach for that too except that a proof was found differently(elliptic curves and all that cool stuff). Primes are a little more trickier to deal with than regular integers, though. Besides, according to the article someone has already proven that all odd integers starting from some sufficiently large number are the sum of three primes. Now just reduce the number to 5, add even numbers and collect million bucks.. think I'll try it tonight on my lunch break.. not.
There'll have to be some kind of a limit that eventually will be determined in court. Maybe it should be related to the function of the lines in question or something else. All code is very similiar and comparing two programs would result in rather large amount of matches. Programmers have a tendency to use similiar variable names(h,i,j,k,l, etc.. for loops) and same structures (hey, it's the programming language imposing these restrictions). Would these (even though unintentional) similiarities qualify as a violation of copyright laws?
What I had in mind originally when posting the comment were the copyright laws concerning the music industry. You can "borrow" a sequence of up to 10 seconds(or something like this, correct me if I'm wrong) without having to worry about lawsuits. Same (sometimes long) sequences of notes or chords do occur in a rather large amount of songs(they just sound better). It would only be logical that same kind of guidelines would apply to source code.
So suppose you make a mod to Quake. Include less code in your patch than it takes for copyright laws to be effective(or just use line numbers) and license the work using whatever license you want - as such it is not a derivative work. Distributing the patch should be allowed without a question with whatever license. You're merely distributing a way to modify something else. You're not violating the license of the original code in anyway as there is no original code involved.
Now, note that I didn't say anything about applying the patch or the end result - these should be different issues. If someone distributed the original work with the applied patch then there would be trouble. Incompatible licenses etc. would surely take someone to court but this need not be. As long as you distribute the original and the patch separately and let the end users do the patching and keep the result to themselves there shouldn't be issues.
There is one small issue that I'm aware of that could be a problem with the previous reasoning. If the original work is required in order to make the patch in the first case then should the patch be considered a derivative work. Even if the patch doesn't have anything from the original code and the original code is used more as a reference.
In my opinion no. Consider school books, for instance. Those are surely copyrighted and you are not even allowed to make copies of them but when you use the knowledge gained from them to create something it surely isn't considered a derivative work. Why should it be different for source code(essentially a cookbook for the resulting program)?
Looking at the comments posted it seems that this "stuff that matters" for most of the people reading this. Probably a cross section of groups "geeks" and "diablo players" would be rather large. Accept it and live with it or go someplace else if you don't like it.
Already a couple of years ago I recall seeing security systems with wireless monitoring services. That would just be a slightly modified cellular phone that would do the communications.. Then again an easy solution would be to have a cellular phone jammer, which unfortunately are fairly easy to get.
Never been to Europe, I guess? Trust me. Even with close to 2$/gallon gas is still pretty cheap in US. It costs a little less for a liter in Europe than it does for a gallon in US. 1 gal is 3.8 liters so you effectively pay over 3$/gallon in Europe...
So if a power failure cuts off the power to your computer what happens to the hard drive? Does it sense this and move the heads to a safe area or are they stuck over data?
How about when you flip your case sideways. Does that move the heads? What about if you combine the previous two?
How damaging is this to the hard drive?
UH! So you're saying that if we pick a professional programmer the chances that he will write a virus are greater than those that he won't? So over half of all the professional programmers are virus writers? That is a pretty harsh accusation and probably insults most of the people who make a living out of programming..
Mmm.. Maybe a real life version of Truman show with a poor AI at the center of the attention?
robot that doesn't know it's a robot.. Sounds like an idea from blade runner to me. And technology was good enough to make that movie about dozen years ago or so..
And yes.. I don't much like microsoft but i hate FUD even more.
I doubt this will work anything like unix hardlinks. Even with the lack of technical detail it seemed more like this could perform linking across network thus really freeing up duplicate space(although, contributing to network traffic).
Microtek Scanmaker X6. This is a parallel port scanner that will work with linux and costs less than 100$ Why? Because it seems to really be a scsi scanner that just works over parallel port and a nice little pportscsi patch to kernel will take care of that minor inconvienience. Check this for more.
Uh.. what a choice of link.. hope there are no animal rights activists reading this.. is that stuff legal even?
Maybe for an average home user it wouldn't be much of a difference which operating system office is running on but for business's that have to have licenses for all the running copies of windows it might just start to add up enough.
Linux is cheaper, more secure, easier to customize, extremely network friendly, runs on cheaper hardware and has a nice buzz behind it. Only thing holding it back is an office suite with 100% compatibility with ms office. Would ms really want to jeopardize the sales for their most succesful product. Why would anyone bother with win2k anymore. Maybe next thing that we'll see is ie for linux(I wouldn't mind, unless mozilla really catches up) although I seriously doubt.
Here's what I don't get. If someone can't afford a computer and an internet connection (That's about 300$ to start with and 13.95$/month) then how is this someone a viable target for advertising! I mean how much money can this poor person spend on the products advertised on his screen(to make up for the cost of the computer and the internet connection) if he can't even afford that 300$ computer! This idea doesn't work for poor people. It works for people who have the money, but wouldn't bother otherwise.. Maybe all the poor people got one of these and the advertisers didn't get anything in return(That 300$ they had to spend on the computer).. maybe it got discontinued because of this..
Yep.. this is windows only, but if you read the text carefully you'll notice that they have a Linux C++-tools package coming soon.. Wonder if it'll be free though.
Athlons do outperform pIII's at most of the clock speeds (when a decent cache multiplier can be used) are cheaper and are more readily available. I will be getting one next month..