Hmm... the Incomputatibility of the Universe, maybe this is an avenue for proving the the Universe is not a simulation?
No, assuming the paper is correct, it merely proves that either P = NP, or that the universe simulation is running on a computer more powerful than a Turing machine.
The number of unrecovered black boxes is pretty damn low: in the past 25 years, only one airplane's recorders were lost. The rest were either destroyed in the crash, or deliberately not recovered.
The author is correct, but he expressed it in a very awkward way: below Wanapum Dam is Priest Rapids Dam, and below that is the Hanford Reach, a free-flowing section of the river. If Wanapum fails, the Priest Rapids reservoir needs to absorb the entire flood; releasing it will cause flooding in the Hanford area.
I never understood why leaded gasoline was cheaper than unleaded back when both were for sale. They actually added the lead.
Because "unleaded" is a misleading name. There have been three major types of gasoline over the years:
1) Raw gasoline: unmodified crude-oil distillates. This is one of the original automobile fuels, and had a varying octane rating; this made building high-performance engines difficult.
2) Leaded gasoline: crude-oil distillates with Tetraethyl lead added to raise and stabilize the octane rating.
3) Unleaded gasoline: crude-oil distillates with additives other than tetraethyl lead used to raise and stabilize the octane rating.
it's said to be vulnerable to timing attacks esp. by those same entities with extremely large means. So why isn't this news about anonymous IM on a garlic routing network or something?, either switch to a new network or upgrade TOR and call it TOR 2.0 or TOR 1.1 or something but please, something has to be done.
There are networks that protect against timing attacks, but the nature of the protection makes them unsuitable for IM or other near-realtime communication. Basically, they operate by having nodes send constant-size data blocks on a regular schedule regardless of how much data needs to be transmitted. This increases latency -- sometimes to hours or days -- and puts a cap on the amount of data the network can transfer. It also wastes bandwidth when the network is operating at less than full capacity, since blocks with random noise need to be transfered to keep lulls in activity from being visible.
Let's say the IoT existed in 1994 & you bought a new Kenmore IoT fridge running Linux 1.x. Fast forward to 2014--who today is doing anything with the Linux 1.x kernel? Nobody--including Kenmore support engineers.
In 1998, I purchased a computer running Windows. Shortly afterwards, I installed Linux 2.2 and a webserver on it. Strangely enough, the computer is still working, is running a modern kernel with full support for the hardware, and somehow managed to avoid being pwned at any point in the intervening 15 years.
The nice thing about open-source software is that you generally don't need to run obsolete software on ancient hardware. That Kenmore IoT fridge would probably run a Linux 3.x kernel without problems, as long as the software was genuinely open-sourced.
This. I'll never understand why when someone "thinks they're the opposite gender" we don't try and fix their mind to match their body but instead are willing to send them through some incredibly dangerous and life-shortening medical procedures to do the exact opposite.
Because it doesn't work. In the century or so between when gender dysphoria was identified and when gender reassignment surgery became practical, any number of techniques to "fix their mind" were tried. None of them had any measurable success rate, and most of them resulted in the patient committing suicide within a few years of starting treatment.
The media does a great job glossing over a fundamental problem with dirty bombs. You have to shield it well enough to get it to it's deployment before it kills you, but it then has to disperse it's contents widely to be even vaguely effective.
A dirty bomb isn't about killing people, it's about scaring people. A pipe bomb will blow out a few windows and maybe kill someone who was unlucky enough to be standing next to it when it went off. A pipe bomb mixed with the guts of a hundred smoke detectors won't be any more deadly, but the resulting radiation scare will keep a few city blocks evacuated for weeks or months.
If the hackers decide to use a dictionary attack, then an xckd-style password is about as good as one 4 characters long.
Four characters, yes, but four from a bloody huge alphabet (2048 characters). An XKCD-style password is almost as strong as four random Chinese characters.
Fine. Split them up like a normal double slit experiment. As stated, neutrons in both arms.
If it's like the standard double-slit experiment, each neutron travels through both arms of the interferometer. Under quantum mechanics, any particle behaving in a wave-like manner can do this sort of thing, even if the particle is of a type (such as a neutron) that people normally think of as being a discrete object.
This is where my understanding gets fuzzy, but I think what they've done is rig things up so that the position-like attributes of each neutron's wavefunction are detectable in one arm of the interferometer, while the magnetic-property attributes are detectable in the other arm.
According to the OpenBSD link, OpenBSD uses the Intel and Via random-number generators, but not as the sole source of randomness. The nice thing about mixing random number generators is that if you do it right (like OpenBSD does), the result is at least as random as the most random source: a bad RNG does not reduce the overall quality of randomness.
What's funny is the ones who say communism is a good idea that just hasn't been done right never really pay attention to the times it has been done exactly according to plan and still failed anyways.
Communism works just fine on a small scale, where everyone involved can see all the "ability"s and "need"s. It's a good bet, for example, that your immediate family operates on communist principles.
Depth perception has over a dozen components, of which stereopsis (your "normal binocular part") is one of the weaker. People have trouble with 3D in movie theaters (and will probably have trouble with the Oculus Rift) because two of the stronger components (accommodation and convergence) are giving very different depth signals from stereopsis. This technology has the potential to be accommodation- and convergence-neutral, meaning the strongest depth signal comes from stereopsis.
But we can't do anything magic to fission products to make them decay into something stable any faster
Actually, we can. Neutron bombardment will usually create particles that are less stable, so they take a faster decay chain down to a stable state. It's a tradeoff: your radioactive waste becomes more radioactive, but for less time.
Maybe. On the one hand, if 100% of our electricity comes from fusion, that works out to around 100,000-1,000,000 kilograms of helium produced each year. On the other hand, the amount produced per reactor at any given time is minuscule, and would be a pain to try to collect.
Slashdot Mirror
No, assuming the paper is correct, it merely proves that either P = NP, or that the universe simulation is running on a computer more powerful than a Turing machine.
The number of unrecovered black boxes is pretty damn low: in the past 25 years, only one airplane's recorders were lost. The rest were either destroyed in the crash, or deliberately not recovered.
I'm sure a "very clear explanation" is given, but I'm not going to read something that presents it to me at a rate of one sentence per page.
The author is correct, but he expressed it in a very awkward way: below Wanapum Dam is Priest Rapids Dam, and below that is the Hanford Reach, a free-flowing section of the river. If Wanapum fails, the Priest Rapids reservoir needs to absorb the entire flood; releasing it will cause flooding in the Hanford area.
To me, that doesn't sound like a very powerful language, it sounds like a language with a huge standard library. Power comes from things like making
"Compile a list of all European capitals, but I don't consider Iceland to be part of Europe"
easy. If it's hard to step outside the limits of the standard library, it's not a powerful language.
Because "unleaded" is a misleading name. There have been three major types of gasoline over the years:
1) Raw gasoline: unmodified crude-oil distillates. This is one of the original automobile fuels, and had a varying octane rating; this made building high-performance engines difficult.
2) Leaded gasoline: crude-oil distillates with Tetraethyl lead added to raise and stabilize the octane rating.
3) Unleaded gasoline: crude-oil distillates with additives other than tetraethyl lead used to raise and stabilize the octane rating.
There are networks that protect against timing attacks, but the nature of the protection makes them unsuitable for IM or other near-realtime communication. Basically, they operate by having nodes send constant-size data blocks on a regular schedule regardless of how much data needs to be transmitted. This increases latency -- sometimes to hours or days -- and puts a cap on the amount of data the network can transfer. It also wastes bandwidth when the network is operating at less than full capacity, since blocks with random noise need to be transfered to keep lulls in activity from being visible.
In 1998, I purchased a computer running Windows. Shortly afterwards, I installed Linux 2.2 and a webserver on it. Strangely enough, the computer is still working, is running a modern kernel with full support for the hardware, and somehow managed to avoid being pwned at any point in the intervening 15 years.
The nice thing about open-source software is that you generally don't need to run obsolete software on ancient hardware. That Kenmore IoT fridge would probably run a Linux 3.x kernel without problems, as long as the software was genuinely open-sourced.
Because it doesn't work. In the century or so between when gender dysphoria was identified and when gender reassignment surgery became practical, any number of techniques to "fix their mind" were tried. None of them had any measurable success rate, and most of them resulted in the patient committing suicide within a few years of starting treatment.
A dirty bomb isn't about killing people, it's about scaring people. A pipe bomb will blow out a few windows and maybe kill someone who was unlucky enough to be standing next to it when it went off. A pipe bomb mixed with the guts of a hundred smoke detectors won't be any more deadly, but the resulting radiation scare will keep a few city blocks evacuated for weeks or months.
No, this one is very definitely a bug.
Four characters, yes, but four from a bloody huge alphabet (2048 characters). An XKCD-style password is almost as strong as four random Chinese characters.
I'd just like to note that a will o' the wisp is not the same thing as ball lightning.
Rock? No, it's a CIA camera and microphone, cleverly disguised as a rock.
If it's like the standard double-slit experiment, each neutron travels through both arms of the interferometer. Under quantum mechanics, any particle behaving in a wave-like manner can do this sort of thing, even if the particle is of a type (such as a neutron) that people normally think of as being a discrete object.
This is where my understanding gets fuzzy, but I think what they've done is rig things up so that the position-like attributes of each neutron's wavefunction are detectable in one arm of the interferometer, while the magnetic-property attributes are detectable in the other arm.
If you'd read the article, you'd see that he did use an industrial linescan camera for some of his work.
I prefer Remington.
There was an effort in 2006 to re-create the Scott expedition to see if they could figure out why it failed (see the second paragraph of https://en.wikipedia.org/wiki/Comparison_of_the_Amundsen_and_Scott_Expeditions#Food_and_fuel). They called it off before reaching the pole because the expedition members were suffering from severe weight loss.
Nothing much, really. A number of the Apollo missions left the Earth's magnetic field, and nothing spectacular happened.
According to the OpenBSD link, OpenBSD uses the Intel and Via random-number generators, but not as the sole source of randomness. The nice thing about mixing random number generators is that if you do it right (like OpenBSD does), the result is at least as random as the most random source: a bad RNG does not reduce the overall quality of randomness.
Communism works just fine on a small scale, where everyone involved can see all the "ability"s and "need"s. It's a good bet, for example, that your immediate family operates on communist principles.
Depth perception has over a dozen components, of which stereopsis (your "normal binocular part") is one of the weaker. People have trouble with 3D in movie theaters (and will probably have trouble with the Oculus Rift) because two of the stronger components (accommodation and convergence) are giving very different depth signals from stereopsis. This technology has the potential to be accommodation- and convergence-neutral, meaning the strongest depth signal comes from stereopsis.
Actually, we can. Neutron bombardment will usually create particles that are less stable, so they take a faster decay chain down to a stable state. It's a tradeoff: your radioactive waste becomes more radioactive, but for less time.
Maybe. On the one hand, if 100% of our electricity comes from fusion, that works out to around 100,000-1,000,000 kilograms of helium produced each year. On the other hand, the amount produced per reactor at any given time is minuscule, and would be a pain to try to collect.
You wait until birth because in-utero DNA sampling carries a risk of miscarriage or birth defects.