If designing a processor instruction set to prevent this attack, I'd make sure that any code doing anything interesting has to contain a sequence that violates the rules of UTF8. Then a system could prevent the attack by just converting any text to valid UTF8, which then would by design not allow to do anything interesting.
Prime candidates for the invalid UTF8 route would be all instructions which change the control flow (jump, conditional jump, call, return).
Candidates for invalid UTF8 would be the bytes 0xFE and 0xFF, the byte range 0xC0 to 0xC3, the byte 0xE0 followed by any byte not in the range of 0xA0 to 0xBF, any byte in the range 0x00 to 0x7F followed by any byte in the range of 0x80 to 0xBF,...
So we have available 6 single bytes and plenty of 2-byte sequences which simply cannot appear in any well-formed UTF8. For example, you could encode call as 0xFE, return as 0xFF, the most important jump instructions in 0xC0 to 0xC3, and the other jumps into non-UTF8 two-byte instructions.
Well, given the current depression, I think a big boom would be more than welcome. I didn't know that the LHC experiments have such a direct effect on our economy, though.
Poor Fox - they think their content is important enough to change the behavior of the entire web surfing public. Newsflash - it's not.
Actually it's Microsoft who thinks so. Murdoch just wants to make a precedence case of a search engine paying for his news content. I'm pretty sure his ultimate goal is to be listed and payed by both Microsoft and Google.
But *why* is it still the square of the distance when I always thought that was just a natural consequence of the increase in volume of a sphere as it's radius increases? If antenna gain makes no difference, then why bother with it at all?
Because although the covered area is much smaller, it still grows quadratically with distance (there simply is no such thing as an exactly parallel beam). The antenna makes a difference in that you get a higher signal in the desired direction to begin with. If your signal is e.g. 25 times as strong in a certain direction, it will remain 25 times as strong even after millions of lightyears. So at a distance where the weak signal would be barely detectable, you still have 25 times the threshold, which should be clearly detectable. Indeed, 25 times the strength means 5 times the reach, due to the inverse scale law.
I didn't say so. There's a reason why I qualified the statements as "according to a documentary", as opposed to e.g. "As shown by a documentary"
I cannot tell how much of that documentary is true facts, speculation, or even plain wrong, because it's my only source on that matter (I don't have the time to research every documentation I view). However it is a fact that this documentary exists, and this is an indication that the content might be true, and therefore it's relevant to the discussion. And again, I explicitly qualified the information as "according to a documentation" so that everyone knows that it's only stating what I got from a single source of unknown reliability.
However, since the pollution has other negative impact on the environment, modern cars and power plants emit much less dirt for the same amount of CO2, therefore the global dimming is reduced.
Slashdot Mirror
If designing a processor instruction set to prevent this attack, I'd make sure that any code doing anything interesting has to contain a sequence that violates the rules of UTF8. Then a system could prevent the attack by just converting any text to valid UTF8, which then would by design not allow to do anything interesting.
Prime candidates for the invalid UTF8 route would be all instructions which change the control flow (jump, conditional jump, call, return).
Candidates for invalid UTF8 would be the bytes 0xFE and 0xFF, the byte range 0xC0 to 0xC3, the byte 0xE0 followed by any byte not in the range of 0xA0 to 0xBF, any byte in the range 0x00 to 0x7F followed by any byte in the range of 0x80 to 0xBF, ...
So we have available 6 single bytes and plenty of 2-byte sequences which simply cannot appear in any well-formed UTF8. For example, you could encode call as 0xFE, return as 0xFF, the most important jump instructions in 0xC0 to 0xC3, and the other jumps into non-UTF8 two-byte instructions.
However, given that it explicitly looks like spam, it actually made sure that it won't get through any decent spam filter.
There's an awful ping time to any server on Earth.
If they put routers into space, then what about servers? Would be the logical next step.
But what if it turns my CPU into a black hole?
That can't be right. I'm pretty sure the world hasn't even started yet.
Well, given the current depression, I think a big boom would be more than welcome. I didn't know that the LHC experiments have such a direct effect on our economy, though.
Next you'll be claiming there's a parallel universe where Slashdotters get laid. That's crazy talk.
No. Even parallel universes don't allow you to break the laws of nature.
So how do you distinguish between electrons and muons if both are red?
But doesn't his joke have some charm nevertheless?
That's not true. It's one of the years which ended up in movie titles, along with 1984, 2001 and 2010.
But of course it won't be the end of the world, because that will be 2038, as predicted by the Unix calendar.
There are usually no colliding balls in a baseball game.
Yes, but what will happen if they beam the cross?
Especially: Does it also cover big bangs?
Well, there's a hint: All cell phones I know have in common a very useful functionality: You can turn them off.
Actually it's Microsoft who thinks so. Murdoch just wants to make a precedence case of a search engine paying for his news content. I'm pretty sure his ultimate goal is to be listed and payed by both Microsoft and Google.
But *why* is it still the square of the distance when I always thought that was just a natural consequence of the increase in volume of a sphere as it's radius increases? If antenna gain makes no difference, then why bother with it at all?
Because although the covered area is much smaller, it still grows quadratically with distance (there simply is no such thing as an exactly parallel beam). The antenna makes a difference in that you get a higher signal in the desired direction to begin with. If your signal is e.g. 25 times as strong in a certain direction, it will remain 25 times as strong even after millions of lightyears. So at a distance where the weak signal would be barely detectable, you still have 25 times the threshold, which should be clearly detectable. Indeed, 25 times the strength means 5 times the reach, due to the inverse scale law.
That's interesting. I've now read several times that Google isn't to blame. I don't recall to ever read the same when Microsoft patented anything.
Then all my quartz watches must have been thermo-compensated.
I didn't say so. There's a reason why I qualified the statements as "according to a documentary", as opposed to e.g. "As shown by a documentary"
I cannot tell how much of that documentary is true facts, speculation, or even plain wrong, because it's my only source on that matter (I don't have the time to research every documentation I view). However it is a fact that this documentary exists, and this is an indication that the content might be true, and therefore it's relevant to the discussion. And again, I explicitly qualified the information as "according to a documentation" so that everyone knows that it's only stating what I got from a single source of unknown reliability.
Oopps, sorry, got fooled by Google calculator. It's 0.52 meV.
Or 24 meV.
I can't see any wizards, gnomes or similar in them. Did you perhaps mean Science Fiction?
Oops, the end of the sentence should of course have been: "... in 2000 instead of after 2000."
However, since the pollution has other negative impact on the environment, modern cars and power plants emit much less dirt for the same amount of CO2, therefore the global dimming is reduced.