Yes, in the US there's always an election coming up, but no, both these senators were elected in 2016 to 6-year terms so neither is facing reelection. Perhaps you could consider the possibility that they mean what they say and are actually concerned about the future of free speech?
'So, why now, after 25 years, do lawmakers appear willing to lift SETI’s taboo status? The short answer is that someone in Congress is into it. The provision comes from Lamar Smith, a Republican congressman from Texas, who worked with the SETI Institute to craft the language, according to SETI researchers. '
No, quantum teleportation requires information to be sent in addition to the entangled state, and one can think of measuring the amount of that information classically, but there is no prohibition on sending the additional information non-classically. As qbits, for example.
Perhaps this is a matter of the meaning of the term 'channel'. I'll avoid that term by saying the additional information needed for quantum teleportation can be sent either classically or quantum mechanically.
To use your example of sending 2 classical bits to teleport 1 qbit: those 2 classical bits represent two binary decisions the receiver must make. How the receiver comes to make those decisions correctly is not crucial.
Good question (nothing 'slow' about it!). The short answer: Statistically.
Longer answer: Suppose you prepare a system in a quantum state you suspect is entangled. By definition, that system will have parts that can be measured separately. Because the parts are entangled, some measurements of the parts will be correlated. A single measurement of the parts might show that the correlation is violated, in which case you've learned that the state is *not* entangled (possibly is was entangled but that entanglement has been lost). But no single measurement can confirm entanglement. To confirm entanglement, you need to prepare the system in same state multiple times, measure each time, and confirm the measurement correlations are as predicted by quantum mechanics.
I find the summary in great need of clarification. Let me attempt to clarify it in the hope that will be useful to other readers.
First, the linked article links to a much better summary written by one of the team members, Matt Woolley. I recommend you read it instead: https://theconversation.com/ex...
Second, the summary conflates *mass* with *distance*. The experimenters claim to have entangled remarkably massive objects (compared to the mass of atoms, for example). But the summary says 'any attempt to increase the sizes has caused problems with stability' and that, taken literally, is not true. For example, here's an experiment from 1998 in which entanglement was maintained over a distance of kilometers: https://en.wikipedia.org/wiki/...
Finally, the summary claims 'a major step forward in our understanding of quantum physics' but I doubt that. It sounds to me like a major accomplishment but one that *confirms* our previous understanding of quantum physics in more massive systems.
You are right about quantum entanglement. But the team member was talking about quantum teleportation, not just entanglement, and I suspect that you misunderstand the difference.
'You cannot set the value at one end and have it appear on the other.'
Right, about entanglement.
'properties of physical bodies can be transmitted across arbitrary distances'
Right, where the properties are quantum states.
'This is a fundamental misunderstanding of entanglement.'
No, it's not. Quantum teleportation depends on having an entangled state, which is used to move some other quantum state from here to there. It also depends on sending some information from here to there in another communication channel, possibly classical (i.e., non-quantum). I suggest you read more about quantum teleportation, e.g.: https://en.wikipedia.org/wiki/...
'I find calling them nazis for short to be acceptable. The fact that they exist today inherently means that they're neo-nazis'
I agree with you.
'There are vanishingly few differences...'
I disagree. Few neo-nazis will be angry about the humiliation of the Versailles Treaty, or demanding an overthrow of the Weimar Republic. Few will be concerned with the threat from 'Jew-Bolsheviks'. Outside central Europe I doubt many neo-nazis are advocating unification of the German-speaking peoples in a single nation, nor military conquest of Lebensraum for this nation (although I confess I haven't looked for recent polling data on these questions).
Warma wrote: "...for land-dwelling life to produce a sentient species" MangoCats wrote: "...sentience includes industrial scale exploitation..."
Would you both please consider replacing "sentience" with "sapience" in such sentences? Those of us who are ourselves sapient would then find your comments make more sense.
The point of my post was not to echo Churchill about Islam but rather to suggest that one can gain confidence in an information source by looking for other sources on the Internet. Yes, I know that's obvious. The poster to whom I was replying, though, either didn't understand it or didn't make the effort.
Snopes refers to the Churchill Centre to back up its claim. It also mentions that many versions of this quote omit one sentence of praise for "Moslems". The Federalist Papers site does not omit this but is correct in this detail as well as the rest.
[I accidentally posted this as an AC a few minutes ago.]
Crediting Hawking for inflation is yet another example of the Matthew Effect.
More specific credit could have gone to Guth, Linde, and Starobinsky who won the Kavli Prize for "pioneering the theory of cosmic inflation" but who's heard of them?
Interesting observation. After skimming the JAMA article I am not able to tell whether that difference is significant, but here are two quotes you might find interesting:
"The study cohorts had an average age of 75.0 years (95% CI, 74.8-75.2 years) in 2000 and 74.8 years (95% CI, 74.5-75.1 years) in 2012"
"Compared with the 2000 cohort, the 2012 cohort had a significantly larger proportion of those who were 85 years or older..."
It's not just the post: the linked article fails to name the country until the 7th paragraph.
Re: "small, little-known African country": -- Liberia has more land area than Portugal or Hungary or Austria. -- Liberia is well-known to USers as a destination for freed slaves in the 19th century.
Seems like the author of the article could use a broader perspective.
I object to your over-generalization. Here in the US, it's not uncommon to deal with first-generation immigrants both professionally and socially. In fact, I've been dealing with South-Asian-accented English speakers in the US my entire adult life (I am 60).
My personal experience relating to the above news item:
A couple of months ago I was called by someone speaking with a South Asian accent (I can't narrow it down more than that). He claimed to be calling from the FBI (not the IRS nor immigration as in the article) and he forcefully told me that I was in trouble with the law. His approach was unprofessional, which made me skeptical, so I asked to call him back. He told me to look up the number he was calling from, which did turn out to be the FBI office in Albany, NY. He even sounded _proud_ of this fact. Yes, the scammers may have proud of their ability to spoof my caller ID!
I persisted, so he referred me to his supervisor. The supervisor _also_ spoke with a South Asian accent and _also_ started bullying me about being in trouble with the law. At this point I knew it was a scam and hung up.
Had I been a good citizen I would have called the FBI myself to report this, but I was just glad to be done with it.
That depends on how the destruction is done. A good comparison is between China's destruction of Fengyun 1C in 2007 and the US' destruction of USA-193 in 2008. The former was done at a higher altitude than the latter. The former created 3425 catalogued(*) pieces of debris, some of which will remain in orbit for decades, whereas the latter created 174 catalogued(*) pieces of debris, none of which remained in orbit two years later.
Tiangong-1 is at a lower altitude than Fengyun 1C (perhaps obvious, since it's about to deorbit), so it's not out of the question for China to destroy it in a way that doesn't make a permanent mess. I'm not advocating that, I don't know whether that's a good idea, I don't know if China has the capability to do that, I'm just disputing your blanket assertion that it's an "absolutely terrible idea".
(*) I mean catalogued by the US military and made available unclassified. It's worth noting that the US military usually keeps orbital data about classified satellites classified. It seems to have made an exception for the debris of USA-193, perhaps for good public relations in discussions such as this one.
"Ten years after ACTIVE began,... more than three hundred met the criteria for dementia, but their odds varied significantly based on which group they had been assigned to. Among those who had been given no training whatsoever, fourteen per cent met the criteria for dementia.... The comparable rate of dementia for the speed-of-processing group was slightly lower, at 12.1 per cent. And among those who had been invited to receive the additional training, 8.2 per cent developed dementia."
Slashdot Mirror
Yes, in the US there's always an election coming up, but no, both these senators were elected in 2016 to 6-year terms so neither is facing reelection. Perhaps you could consider the possibility that they mean what they say and are actually concerned about the future of free speech?
... will be referred to the new Schrodinger Committee where they can remain both live and dead while unobserved.
' Increasing Entanglement Between Military and Industrial Complexes'
Will the US be able to pay for these initiatives by printing quantum money?
Other US senators politely referred to the text of Harris' bills as 'superdense coding'.
Repeated measurements of Senator Harris in the Congressional eigenbasis always collapse to the |Democrat> state.
FTA:
'So, why now, after 25 years, do lawmakers appear willing to lift SETI’s taboo status? The short answer is that someone in Congress is into it. The provision comes from Lamar Smith, a Republican congressman from Texas, who worked with the SETI Institute to craft the language, according to SETI researchers. '
No, quantum teleportation requires information to be sent in addition to the entangled state, and one can think of measuring the amount of that information classically, but there is no prohibition on sending the additional information non-classically. As qbits, for example.
Perhaps this is a matter of the meaning of the term 'channel'. I'll avoid that term by saying the additional information needed for quantum teleportation can be sent either classically or quantum mechanically.
To use your example of sending 2 classical bits to teleport 1 qbit: those 2 classical bits represent two binary decisions the receiver must make. How the receiver comes to make those decisions correctly is not crucial.
Good question (nothing 'slow' about it!). The short answer: Statistically.
Longer answer: Suppose you prepare a system in a quantum state you suspect is entangled. By definition, that system will have parts that can be measured separately. Because the parts are entangled, some measurements of the parts will be correlated. A single measurement of the parts might show that the correlation is violated, in which case you've learned that the state is *not* entangled (possibly is was entangled but that entanglement has been lost). But no single measurement can confirm entanglement. To confirm entanglement, you need to prepare the system in same state multiple times, measure each time, and confirm the measurement correlations are as predicted by quantum mechanics.
I find the summary in great need of clarification. Let me attempt to clarify it in the hope that will be useful to other readers.
First, the linked article links to a much better summary written by one of the team members, Matt Woolley. I recommend you read it instead:
https://theconversation.com/ex...
Second, the summary conflates *mass* with *distance*. The experimenters claim to have entangled remarkably massive objects (compared to the mass of atoms, for example). But the summary says 'any attempt to increase the sizes has caused problems with stability' and that, taken literally, is not true. For example, here's an experiment from 1998 in which entanglement was maintained over a distance of kilometers:
https://en.wikipedia.org/wiki/...
Finally, the summary claims 'a major step forward in our understanding of quantum physics' but I doubt that. It sounds to me like a major accomplishment but one that *confirms* our previous understanding of quantum physics in more massive systems.
You are right about quantum entanglement. But the team member was talking about quantum teleportation, not just entanglement, and I suspect that you misunderstand the difference.
'You cannot set the value at one end and have it appear on the other.'
Right, about entanglement.
'properties of physical bodies can be transmitted across arbitrary distances'
Right, where the properties are quantum states.
'This is a fundamental misunderstanding of entanglement.'
No, it's not. Quantum teleportation depends on having an entangled state, which is used to move some other quantum state from here to there. It also depends on sending some information from here to there in another communication channel, possibly classical (i.e., non-quantum). I suggest you read more about quantum teleportation, e.g.:
https://en.wikipedia.org/wiki/...
Intel : '20 millikelvin ... why we won't be seeing quantum computers in anyone's house at any point'
How do they know that no part of my house is below 20 mK? It's kinda cold in here right now.
More seriously, how do they know that no other qbit technology will ever remove their low-temperature restriction?
'I find calling them nazis for short to be acceptable. The fact that they exist today inherently means that they're neo-nazis'
I agree with you.
'There are vanishingly few differences...'
I disagree. Few neo-nazis will be angry about the humiliation of the Versailles Treaty, or demanding an overthrow of the Weimar Republic. Few will be concerned with the threat from 'Jew-Bolsheviks'. Outside central Europe I doubt many neo-nazis are advocating unification of the German-speaking peoples in a single nation, nor military conquest of Lebensraum for this nation (although I confess I haven't looked for recent polling data on these questions).
"Thanks Obama"
Supergirl seems to work for free, though, so that is downward pressure on salaries at the DEO. NASA might need to pay more.
Warma wrote: "...for land-dwelling life to produce a sentient species"
MangoCats wrote: "...sentience includes industrial scale exploitation..."
Would you both please consider replacing "sentience" with "sapience" in such sentences? Those of us who are ourselves sapient would then find your comments make more sense.
A comparison of these words: http://casinerina.blogspot.com...
The point of my post was not to echo Churchill about Islam but rather to suggest that one can gain confidence in an information source by looking for other sources on the Internet. Yes, I know that's obvious. The poster to whom I was replying, though, either didn't understand it or didn't make the effort.
Here's Snopes claiming this quote as authentic:
Snopes [snopes.com]
Snopes refers to the Churchill Centre to back up its claim. It also mentions that many versions of this quote omit one sentence of praise for "Moslems". The Federalist Papers site does not omit this but is correct in this detail as well as the rest.
[I accidentally posted this as an AC a few minutes ago.]
Hey Youngster: sorry, but the user home directories still belong under /usr .
Crediting Hawking for inflation is yet another example of the Matthew Effect.
More specific credit could have gone to Guth, Linde, and Starobinsky who won the Kavli Prize for "pioneering the theory of cosmic inflation" but who's heard of them?
Interesting observation. After skimming the JAMA article I am not able to tell whether that difference is significant, but here are two quotes you might find interesting:
"The study cohorts had an average age of 75.0 years (95% CI, 74.8-75.2 years) in 2000 and 74.8 years (95% CI, 74.5-75.1 years) in 2012"
"Compared with the 2000 cohort, the 2012 cohort had a significantly larger proportion of those who were 85 years or older..."
It's not just the post: the linked article fails to name the country until the 7th paragraph.
Re: "small, little-known African country":
-- Liberia has more land area than Portugal or Hungary or Austria.
-- Liberia is well-known to USers as a destination for freed slaves in the 19th century.
Seems like the author of the article could use a broader perspective.
I object to your over-generalization. Here in the US, it's not uncommon to deal with first-generation immigrants both professionally and socially. In fact, I've been dealing with South-Asian-accented English speakers in the US my entire adult life (I am 60).
My personal experience relating to the above news item:
A couple of months ago I was called by someone speaking with a South Asian accent (I can't narrow it down more than that). He claimed to be calling from the FBI (not the IRS nor immigration as in the article) and he forcefully told me that I was in trouble with the law. His approach was unprofessional, which made me skeptical, so I asked to call him back. He told me to look up the number he was calling from, which did turn out to be the FBI office in Albany, NY. He even sounded _proud_ of this fact. Yes, the scammers may have proud of their ability to spoof my caller ID!
I persisted, so he referred me to his supervisor. The supervisor _also_ spoke with a South Asian accent and _also_ started bullying me about being in trouble with the law. At this point I knew it was a scam and hung up.
Had I been a good citizen I would have called the FBI myself to report this, but I was just glad to be done with it.
That depends on how the destruction is done. A good comparison is between China's destruction of Fengyun 1C in 2007 and the US' destruction of USA-193 in 2008. The former was done at a higher altitude than the latter. The former created 3425 catalogued(*) pieces of debris, some of which will remain in orbit for decades, whereas the latter created 174 catalogued(*) pieces of debris, none of which remained in orbit two years later.
Tiangong-1 is at a lower altitude than Fengyun 1C (perhaps obvious, since it's about to deorbit), so it's not out of the question for China to destroy it in a way that doesn't make a permanent mess. I'm not advocating that, I don't know whether that's a good idea, I don't know if China has the capability to do that, I'm just disputing your blanket assertion that it's an "absolutely terrible idea".
(*) I mean catalogued by the US military and made available unclassified. It's worth noting that the US military usually keeps orbital data about classified satellites classified. It seems to have made an exception for the debris of USA-193, perhaps for good public relations in discussions such as this one.
Not that I'm advocating what "geek" did, but it sounds less like genocide and more like ideocide (or "meme"-o-cide?).
No, they performed a measurement. FTA:
"Ten years after ACTIVE began, ... more than three hundred met the criteria for dementia, but their odds varied significantly based on which group they had been assigned to. Among those who had been given no training whatsoever, fourteen per cent met the criteria for dementia. ... The comparable rate of dementia for the speed-of-processing group was slightly lower, at 12.1 per cent. And among those who had been invited to receive the additional training, 8.2 per cent developed dementia."
Apparently not this time:
NORAD ID 40387