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StringJunky

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Posts posted by StringJunky

  1. On 1/8/2024 at 1:17 AM, iNow said:

    It’s either systems the size of football fields or parallelism across multiple networked systems to make additional qbits available.

     

    Quote

    Richard Feynman's observation that certain quantum mechanical effects cannot be simulated efficiently on a computer led to speculation that computation in general could be done more efficiently if it used these quantum effects. This speculation proved justified when Peter Shor described a polynomial time quantum algorithm for factoring intergers.

    In quantum systems, the computational space increases exponentially with the size of the system, which enables exponential parallelism. This parallelism could lead to exponentially faster quantum algorithms than possible classically. The catch is that accessing the results, which requires measurement, proves tricky and requires new nontraditional programming techniques.

    https://dl.acm.org/doi/abs/10.1145/367701.367709

     

  2. 5 hours ago, Phi for All said:

    It only takes generations when one of those generations is unwilling to change. Pick any three major progressive changes and if you can avoid the obstructionists, things will move quickly.

    Offhand, I'd allow ranked-choice voting, just so we can break with the two parties that only represent corporations, and get some actual citizen representation going. I'd also nationalize something major, like food production, so healthy food was a right rather than something you have to earn. And my fave right now is to expand the USPS to compete with Amazon, including a vendor portal so small businesses aren't smothered. 

    People who have no food insecurities and access to the means to prosperity aren't as likely to have lots of kids. Same goes for folks who are better educated, so a focus there can only help with overpopulation. We really need to stop supporting the industries that spend money to spin fear because we spend more when we're afraid and frustrated.

    The EU and UK is trying unpack the byzantine tax strategies they use to currently hide 'excess' taxable wealth. It needs comprehensive global co-operation though, otherwise they'll just keep moving it.

  3. 42 minutes ago, Pooh said:

    Let's put it this way. Do you admit that science aims to reveal truth? If you say no, then I don't think we need to continue the conversation anymore because we are talking about things at different level. Hens do not speak to ducks. They cannot communicate with each other.

    If you say yes, let me know how you define truth. For me, self-consistency is the touch stone of truth. If a theory that cannot justify itself, it is far from truth. In searching of a self-consistent theory, you need a self-consistent tool. If a tool cannot even justify itself, do you think the justification it offers to a theory is trustworthy? Now the question is whether logic can justify logic itself, or the method of induction can provide justification to the method of induction. A conclusion from induction without exhausting all samples is trustworthy? With a flawed tool, what a chance it is to unveil truth.

    I know it's hard to convince people with some alien ideas, but with this conversation, I think it will, at least, leave some impression in your mind and you can verify it in your real life to test it. After all, people only trust their own experience. 

    Truth in science is what agrees with observations of the day and seems to reflect how nature behaves. I add the word 'seems' because what a theory says today may change in the light of new information tomorrow. There's no such thing as 'sitting on your laurels' in science. Truth is for religion and other non-scientific interests.

  4. To be a subject of Pegasus software, for what it costs to implement, one would need to be a very high value target. I'm under no worries about Pegasus.

    Quote

    Citing a 2016 price list, the New York Times reported the NSO Group charged its customers $650,000 to infiltrate 10 devices, plus an installation fee of $500,000,
    The NYT report also stated that much like a traditional software company, the NSO Group prices its surveillance tools by the number of targets, starting with a flat $500,000 installation fee.
    According to a commercial breakdown, NSO charges government agencies $650,000 to spy on 10 iPhone users; $650,000 for 10 Android users; $500,000 for five BlackBerry users; or $300,000 for five Symbian users — on top of the setup fee.

    https://timesofindia.indiatimes.com/business/india-business/pegasus-snooping-how-costly-is-the-israeli-spyware/articleshow/84893498.cms

     

  5. 14 hours ago, TheVat said:

    Me too.  Though social shame doesn't work with teenagers in some societies, often triggering more of an undesirable behavior as an enjoyable bit of rebellion.

    Their 'naughty step' can be denial of cell phone privileges for some specified period. They will be fitted with an ankle-worn phone jammer,, so that nobody's phone can work them within 10m of them. They'll  be a social pariah jamming peoples phones. :D No phone is a state of death for a millennial and younger.

  6. 17 minutes ago, AIkonoklazt said:

    Most of this stuff is cultural. When I was in Kyoto I thought holy cow, those were some of the cleanest backstreets I've seen in my entire life- I could almost eat off the ground!... Almost.

    ..and then there was Nice (pronounced "neese",) with its dog poop sidewalks. Nice.

    Since changing culture is not extremely practical, I'd say there's nothing like some negative financial incentive. Start handing out hundred-dollar tickets left and right and see what happens.

    It's about getting the message out in the right way and somehow attaching some "tut-tut.. shame" to it socially. It seems to be stronger in places like Japan. I am quite affine to some of the Japanese ways. 

  7. 56 minutes ago, npts2020 said:

    It's interesting Butyric Acid is a fairly common ingredient in fragrance making. I have heard it said that every good fragrance has at least one awful ingredient, tho...

    It's all about the concentration in the air. Butyric acid hints at familiar foods when it's just a whiff; bakery, butter, humbug sweets etc. A bit more and you are into hot sunny day armpit territory It adds depth, which makes it a 'bottom note' in mixes and rounds things out. Caproic acid (C6) is much the same... a bit more sweaty smelling, cheesy. These things are in your food as natural components of some foods aromas.

  8. Mar-mar; To add to swansont's post, in case you aren't aware:

    Falsifiable - This means that scientific theories and hypotheses must be testable and potentially disprovable through observation and experimentation. Falsifiability helps to ensure that scientific claims are based on empirical evidence and can be subject to scrutiny and revision based on new data. - from another forum.

    God is not falsifiable, therefore they can have no place in science discussion.

  9. 7 minutes ago, zapatos said:

    I get so tired of people who blame the poor for their lot in life. If only they went to  college and earned more money they would be the better kind of person who quickly picks up trash, instead of letting it rust on the ground along with every other single person in the neighborhood, none of whom give a shit.

    Yes. Affluence is no indicator of  environmental concern. Affluent areas will naturally have more 'string pullers' who can get others to do it for them. Rubbish is as likely to fly out of a high-end Mercedes as a shed on wheels.

  10. 40 minutes ago, chenbeier said:

    Try Polyethylenglycole 10000

    Will look into PEG10000. Thanks.

    50 minutes ago, chenbeier said:

    Try Polyethylenglycole 10000

    Is there a particular reason for PEG10000? It seems to be solid at ambient temps and I'd like it to stay liquid in the single digits temperature-wise. Would a lower weight version be better for my use?

  11. 6 hours ago, exchemist said:

    I don’t know but I would expect the solubility to be quite good. I’m not sure I would expect full miscibility, as the alkyl group of butyric acid is quite big and might reduce the hydrogen bonding of propylene glycol too much. 

    Thanks for answering. I did it, no layers can be seen and optically clear. It was about 10% by volume BA in to PG. I'm finding PG is a good food solvent and sort of bridge between polar and non-polar ingredients; letting them sit together better.

  12. TURIN, Dec 27 (Reuters) - A man may regain the use of his hand, left paralysed by a severe road accident, thanks to a pioneering nerve transfer operation from his partly amputated leg, doctors in northern Italy said.

    Surgeons at Turin City Hospital (CTO) transferred part of the man's sciatic nerve, which controlled the movement of his amputated foot, to his brachial plexus, the network of nerves that connect the spinal cord to the shoulder, arm and hand.

    "It's the first time that someone transfers a component of the sciatic nerve to the brachial plexus", Paolo Titolo, one of the surgeons who performed the operation, said in an interview with Reuters on Wednesday.

    Marcello Gaviglio, a 55-year-old healthcare worker had to have half his left leg amputated after he was hit by a motor-bike five months ago while travelling to work on his moped.

    He suffered serious injuries to his brachial plexus as well as his leg, leaving him unable to use either of his hands.

    Because the part of the sciatic nerve that controlled his left foot was no longer needed, it could be transferred to the shoulder area in the operation carried out on Dec. 21, potentially restoring the mobility to one of his hands.

    Before it is clear if that is possible, Gaviglio will have to undergo around 5 months of post-operative care. For now, he is still unable to move the hand at all.

    Nerve transfer surgery is not new, but it has not previously involved moving a nerve that normally controls the foot to an area that controls the hand.

    "We think this is pioneering surgery because if it works it means that the brain plasticity can control also other parts of the body that we didn't expect and also opens new fields in neuro studies," Titolo said.

    https://www.reuters.com/business/healthcare-pharmaceuticals/italian-may-regain-use-hand-after-nerve-transfer-amputated-leg-2023-12-27/

  13. 3 minutes ago, zapatos said:

    Trump is the leading Republican candidate for President and an ex-president himself. His name is being removed for (alleged) violation of the Constitution regarding insurrection. He has 90 something criminal charges outstanding. He is trying to win the presidency in part to shut down cases that may send him to jail. This is unprecedented. Even my young grandkids realize this is a big deal.

    Yes, this is all about keeping him away from the law.

  14. 12 hours ago, iNow said:

    Yes, many definitions were established, and various participants have been exercising their freedom to choose completely different ones when posting.

    Depends entirely on the definition one selects.

    Welcome to philosophy… where we’ll be speaking of the exact same thing without making any significant progress for many centuries to come. 

    We have Newtonian, General and quantum theories of gravity. Use what works in a particular situation.

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