depending on what exactly you mean by FTL, it's either the same thing as teleportation (instantaneous movement of information) or even stronger (time travel)... given the topic, I just assumed the former
Saying entanglement is like teleportation is basically the same as saying that one-time pad is like PKI. With OTP, you distribute key material 'ahead of time' (just like you distribute parts of an entangled system) and then you can magically 'communicate' (securely in the case of OTP, instantaneously in case of teleportation). This all works only because you distributed things beforehand and then conveniently forgot that part.
Even then, entanglement-based 'teleportation' is useless. If you forget fancy lasers and particle pairs, all you need for this kind of 'magic' is a pouch with a black and a white marble. Person A takes one out but does not look. Person B takes the pouch with the remaining marble and moves to Canada. Then A looks at his marble, discovers it is white and instantaneously knows that person B has a black one. Oooh, magic. Not.
The proposed applications are rather incoherent. Claiming that something is 'encrypted' while it is also possible to data-mine is nonsense. A real homomorphic encryption scheme would only allow the owner of the encrypted data (i.e. the party that knows the encryption key) to decrypt the results, definitely not some third party. How these folks make the leap from 'homomorphic encryption' (which they don't even have) to 'secure, privacy-preserving data mining' is less than clear. I call BS.
Well, his argument is that maybe the "linux is free of charge" (a commonly heard phrase) is a bit pointless, especially in corporate environment? And that actually, you can't save any much on acquisition costs by not purchasing windows. Which is IMO interesting point. So what is your problem?
Your petrol/diesel car engine might be much more effective than the whole coal/oil/whatever -> electricity -> transport -> charging -> electro-engine chain. The interesting part begins when you replace coal/oil/whatever with sun/water/whatever energy... Still, the electrical energy is distributed and used with huge lossess, AFAIK (our physics teacher seemed quite confident about this one). Maybe some research/investement in this area would be worthwhile?
Another point here is that oil sources are (sooner or later) going to be depleted -- maybe its time to think of viable alternatives (i don't think coal-powered car is;p). But today, electric cars are hoplessly ineffective (look at the parameters). And today's accumulators are hardly usable for this (take the price and weight factor for example). Maybe hydrogen fuel-cells? (Hydrogen can be "manufactured" from energy and e. g. water -- don't know how efficiently tho -- but in large quantities maybe it would do? Think power-plant versus car engine).
PS: I didn't include nuclear power on purpose... I am still not sure whether it is good/bad (worse/better than "conventional" power sources). Will think about the issue tho.
Slashdot Mirror
... from the worst of all market predators, small businesses.
depending on what exactly you mean by FTL, it's either the same thing as teleportation (instantaneous movement of information) or even stronger (time travel)... given the topic, I just assumed the former
Saying entanglement is like teleportation is basically the same as saying that one-time pad is like PKI. With OTP, you distribute key material 'ahead of time' (just like you distribute parts of an entangled system) and then you can magically 'communicate' (securely in the case of OTP, instantaneously in case of teleportation). This all works only because you distributed things beforehand and then conveniently forgot that part. Even then, entanglement-based 'teleportation' is useless. If you forget fancy lasers and particle pairs, all you need for this kind of 'magic' is a pouch with a black and a white marble. Person A takes one out but does not look. Person B takes the pouch with the remaining marble and moves to Canada. Then A looks at his marble, discovers it is white and instantaneously knows that person B has a black one. Oooh, magic. Not.
The proposed applications are rather incoherent. Claiming that something is 'encrypted' while it is also possible to data-mine is nonsense. A real homomorphic encryption scheme would only allow the owner of the encrypted data (i.e. the party that knows the encryption key) to decrypt the results, definitely not some third party. How these folks make the leap from 'homomorphic encryption' (which they don't even have) to 'secure, privacy-preserving data mining' is less than clear. I call BS.
I think you intended to post this on the first of April not first of March.
Well, his argument is that maybe the "linux is free of charge" (a commonly heard phrase) is a bit pointless, especially in corporate environment? And that actually, you can't save any much on acquisition costs by not purchasing windows. Which is IMO interesting point. So what is your problem?
RTFA (again)
Since when is JavaScript a subset of Java and C? Refer to http://c2.com/cgi/wiki?JavaScript
And energy lossess in the grid and in the engine of electric car... but still, the electric car might be winning in the efficiency area.
Your petrol/diesel car engine might be much more effective than the whole coal/oil/whatever -> electricity -> transport -> charging -> electro-engine chain. The interesting part begins when you replace coal/oil/whatever with sun/water/whatever energy... Still, the electrical energy is distributed and used with huge lossess, AFAIK (our physics teacher seemed quite confident about this one). Maybe some research/investement in this area would be worthwhile?
;p). But today, electric cars are hoplessly ineffective (look at the parameters). And today's accumulators are hardly usable for this (take the price and weight factor for example). Maybe hydrogen fuel-cells? (Hydrogen can be "manufactured" from energy and e. g. water -- don't know how efficiently tho -- but in large quantities maybe it would do? Think power-plant versus car engine).
Another point here is that oil sources are (sooner or later) going to be depleted -- maybe its time to think of viable alternatives (i don't think coal-powered car is
PS: I didn't include nuclear power on purpose... I am still not sure whether it is good/bad (worse/better than "conventional" power sources). Will think about the issue tho.