Showing posts with label Mathematics. Show all posts
Showing posts with label Mathematics. Show all posts

Saturday, March 11, 2023

11: News Bulletin

Blue Origin Says It Can Make Solar Panels Out of Moon Dust
This Box Wing eVTOL Will Run on Hydrogen and Have a Range of 620 Miles
This 3D Printed Community Is Printing One House per Week for a Year
Cutting Out Just a Muffin a Day Can Make You Age More Slowly, Study Finds
Robots Could Be Doing Almost Half of Our Household Chores Within a Decade



Humans Didn’t Invent Mathematics, It’s What the World Is Made Of the Pythagorean school of thought in ancient Greece .... reality is fundamentally mathematical. More than 2,000 years later, philosophers and physicists are starting to take this idea seriously. ......... mathematics is an essential component of nature that gives structure to the physical world. ....... Bees in hives produce hexagonal honeycomb. Why? ..... bees have evolved to use this shape because it produces the largest cells to store honey for the smallest input of energy to produce wax. ........ There are two subspecies of North American periodical cicadas that live most of their lives in the ground. Then, every 13 or 17 years (depending on the subspecies), the cicadas emerge in great swarms for a period of around two weeks. ...... Why is it 13 and 17 years? Why not 12 and 14? Or 16 and 18? ....... 13 and 17 are prime numbers. ......... cicadas have a range of predators that also spend most of their lives in the ground. The cicadas need to come out of the ground when their predators are lying dormant. ........ Suppose there are predators with life cycles of 2, 3, 4, 5, 6, 7, 8, and 9 years. What is the best way to avoid them all? ......... Once we start looking, it is easy to find other examples. From the shape of soap films, to gear design in engines, to the location and size of the gaps in the rings of Saturn, mathematics is everywhere. ......... mathematical facts are discovered: not just by humans, but by insects, soap bubbles, combustion engines, and planets. ........ Plato also maintained that mathematical objects exist outside of space and time. But such a view only deepens the mystery of how mathematics explains anything.......... physical reality is made of mathematical objects in the same way matter is made of atoms. ....... the idea that reality is a simulation. A simulation is a computer program, which is a kind of mathematical object. ....... reality is made of mathematical objects and minds. Mathematics is how the universe, which is conscious, comes to know itself. ........ Mathematics gives matter its form, and matter gives mathematics its substance. ........ As the boundary between physics and mathematics blurs, it becomes harder to say which parts of the world are physical and which are mathematical. ..... The time has arrived for a Pythagorean revolution, one that promises to radically alter our understanding of reality.

Pythagoras’ revenge: humans didn’t invent mathematics, it’s what the world is made of
Mathematical Explanation: A Pythagorean Proposal
Who are Jehovah’s Witnesses? A religion scholar explains the history of the often misunderstood group 8 million members across 240 countries. ........ understood “Jehovah,” a version of the Hebrew “Yahweh,” to be the name of God the Father himself. ........ looked forward to Jesus Christ establishing a “millennium” or a thousand-year period of peace on Earth. This “Golden Age” would see the Earth transformed to its original purity, with a “righteous” social system that would not have poverty or inequality. ....... look forward to the Golden Age that Russell and his Bible students expected. ........ the group’s belief in a literal thousand-year earthly reign of Christ ....... they do not vote in elections, serve in the military or salute the flag. Such acts, they believe, compromise their primary loyalty to God...... Jehovah’s Witnesses have no political affiliations, and they renounce violence. However, they make an easy target for governments looking for internal enemies, as they refuse to bow down to government symbols. Many nationalists call them “enemies of the state.” ......... Jehovah’s Witnesses were jailed as draft evaders in the U.S. during both world wars. In a Supreme Court ruling in 1940, school districts were allowed to expel Jehovah’s Witnesses who refused to salute the American flag. Through subsequent legal battles in the 1940s and 1950s, Jehovah’s Witnesses helped expand safeguards for religious liberty and freedom of conscience both in the United States and Europe. ......... In Nazi Germany, Jehovah’s Witnesses were killed in concentration camps; a purple triangle was used by the Nazis to mark them.

SCIENTISTS DISCOVER ENZYME THAT CAN TURN AIR INTO ELECTRICITY
ECONOMISTS COMPARE CRYPTO TO "COCAINE" IN SCATHING TAKEDOWN
Company Raises $100M After Announcing Shift to AI, But Has No Discernible Product We're in the middle of an AI gold rush — but is there any gold?
CONGRESSMAN CLAIMS THE US GOVERNMENT HAS "REVERSE-ENGINEERED" ALIEN TECH FROM UFOS IT'S A PRETTY OUTLANDISH THEORY.
NOAM CHOMSKY: AI ISN'T COMING FOR US ALL, YOU IDIOTS "THAT DAY MAY COME, BUT ITS DAWN IS NOT YET BREAKING."
MICROSOFT SAYS OPENAI'S LATEST BLOCKBUSTER AI IS DROPPING "NEXT WEEK" WE HAVE QUESTIONS.
WE'RE TOTALLY OK WITH THIS 48,500 YEAR OLD "ZOMBIE" VIRUS BEING RESURRECTED WHAT COULD POSSIBLY GO WRONG?
SCIENTISTS PLAY TINIEST GAME OF BASEBALL BY THROWING AND CATCHING INDIVIDUAL ATOMS EAT YOUR HEART OUT, ANTMAN.
Report: Elon Musk is Building His Own Town in Texas Musk wants his own company town where people live and work for him. ........ a "Texas Utopia" along the Colorado River where SpaceX, Boring Company, and Tesla employees can live, work, and play, and never have to leave. .



Iran-Saudi ties: China-brokered ‘win-win’ deal could bring Yemen war to a close, analysts say Tehran and Riyadh have agreed to restore diplomatic relations following the Beijing-led talks that experts dubbed as ‘a major development in the Middle Eastern diplomacy’....... Analysts say the easing of tensions between the rivals could also prompt Saudi and Iran to end hostilities in Yemen by agreeing to a ‘face-saving’ resolution .......... The Chinese-mediated agreement between Iran and Saudi Arabia to resume diplomatic relations after a seven-year hiatus is widely expected to de-escalate conflicts across the Middle East. Although details of the deal reached during five days of talks in Beijing have not been made public, many analysts believe they include an understanding on bringing the eight-year war in Yemen to a negotiated close. .



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Saturday, November 23, 2019

The Man Who Solved The Market

Book recommended by Jassim Alseddiqi.




The Man Who Solved the Market employed at the IDA in Princeton ...... While I’ve often heard the story of how he was fired from IDA after publicly criticizing the Vietnam War, less well known is that a big problem was that he was quoted in Newsweek saying he planned to work on his own projects, not government ones, until the war was over.

How to Beat the Market “a blindfolded monkey throwing darts at a newspaper’s financial pages could select a portfolio that would do just as well as one carefully selected by the experts.” ........ the market is so efficient that even professional investors have little chance of beating it on a regular basis. If there’s one reason index funds, which replicate the performance of market indexes like the S&P 500, now hold $4.3 trillion (yes, trillion) in assets .......

Jim Simons is not a blindfolded monkey.

A former code-breaker for the United States government and a brilliant mathematician, Simons founded the most successful investment firm the world has ever seen........ even Warren Buffett’s track record — 20.5 percent annualized returns since 1965 — doesn’t approach Simons’s average of 39 percent gains over a three-decade span. And that’s after his company has taken a 5 percent management fee and 44 percent of the profits. ....... How does Simons do it? We know that his firm, Renaissance Technologies, helped pioneer quantitative investing, relying on complex computer programs rather than human judgment, to make trading decisions. .......... on the subject of his investing success, he is secretive to the point of paranoia. Employees sign ironclad nondisclosure agreements, and are told to avoid media appearances and industry conferences. ........ “combinatorial game theory” and “stochastic equations” ....... turns out that a firm like Renaissance, filled with nerdy academics trying to solve the market’s secrets, is way more interesting than your typical greed-is-good hedge fund....... Simons first began investing as a young man after receiving $5,000 as a wedding gift. He was a commodities speculator for a short time....... a computerized stock trading system that could search — and I’m quoting Zuckerman here — “for a small number of ‘macroscopic variables’ capable of predicting the market’s short-term behavior.” ......... In 1978, Simons left Stony Brook University, where he had built its math department into one of the best in the country, to start the firm that we now know as Renaissance Technologies........ They collected incredible amounts of historical data — not just about stocks and bonds, but about currencies, commodities, weather patterns and all sorts of market-moving events. They made plenty of missteps along the way. But in time, they had gathered so much data — and had computers powerful enough to ingest that data — that the machines found profitable correlations no human could ever suss out, much less understand....... one of the most interesting was the firm’s former co-chief executive, Robert Mercer, the conservative billionaire who funded Breitbart News and Cambridge Analytica. Zuckerman portrays Mercer as “a peculiar but largely benign figure within the company” who liked to zing his liberal colleagues, but mostly kept his own counsel. When his role in conservative politics caused an outcry, Simons felt he had to ask his longtime partner to step down as co-C.E.O. But even though Simons himself was a liberal, he wasn’t happy about it. “He’s a nice guy,” Zuckerman quotes Simons telling a friend. “He’s allowed to use his money as he wishes.” ........

Simons makes money because human behavior will never be completely “efficient.”

...... humans have always acted emotionally ..... “I think the market is reasonably close to efficient,” another well-known quant, Clifford Asness, once told me, “but there are a lot of little inefficiencies.” Those little inefficiencies are what emotionless computers take advantage of. ....... “For all the unique data, computer firepower, special talent and trading and risk-management expertise Renaissance has gathered, the firm only profits on barely more than 50 percent of its trades, a sign of how challenging it is to try to beat the market — and how foolish it is for most investors to try.” ....... In other words,

stick to index funds.






The Man Who Solved the Market — how Jim Simons built a moneymaking machine Gregory Zuckerman’s book lifts the lid on the enimgatic founder of Renaissance who launched the quant revolution ......... The profound and the inane alike are debated on Quora, a website where the curious (or plain bored) can pose questions to the internet hive mind. ......... Renaissance Technologies, a fabled yet secretive hedge fund ......Last year, a rival recounted how he had once nearly poached someone from Renaissance, only to be stymied at the last minute. “I read about him years later,” the Quora contributor wrote. “He bought an Alp. As in . . . an actual mountain in Austria.” ....... the awestruck fascination that Renaissance commands in finance. ...... Machines and algorithms have taken over swaths of markets, supplanting the grizzled traders of public perception, and no one has harnessed computer science and vast data sets to invest as successfully as Renaissance. “It’s the gold standard of computer trading,” one rival once ruefully admitted to me......... Even most people in finance would struggle to identify Simons out of a line-up of similarly disheveled octogenarians. Indeed, his chain-smoking, silver beard, wryness and reluctance to wear socks all make him seem more like a Coen Brothers character than a colossus of investing........ Quoting Benjamin, Animal Farm’s wise old donkey, Simons said:

“‘God gave me a tail to keep off the flies. But I’d rather have had no tail and no flies.’ So, that’s kind of the way I feel about publicity.”

....... the most fascinating man in financial markets: a liberal mathematician who once motorcycled from Boston to Bogotá, was ejected from the Soviet code-cracking team at the Institute for Defense Analyses for opposing the Vietnam war, and then built the most relentless of moneymaking machines. ..... Renaissance has generated over $100bn in trading profits since 1988 — more than any other hedge fund in history — making millionaires of many of its employees, and several billionaires. Forbes puts Simons’ fortune at above $21bn, leaving other hedge fund magnates and financiers such as Ray Dalio, George Soros and Stephen Schwarzman trailing......... Quantitative finance — as it is dubbed — may seem a recondite subject to many people, but it is profoundly reshaping the investment industry, and thus capitalism itself. And Renaissance is the shining example of what can be achieved by applying modern technology, big data and lots of brainy people........... Renaissance is also emblematic of an era where technology helps money and power accrue to an increasingly small number of people. The choices that these people make can reverberate globally. While Simons has become one of the world’s biggest backers of scientific research and philanthropy — and a host of Democratic politicians — his former colleague Robert Mercer has funnelled his billions into the far-right Breitbart News, the election of Donald Trump and Cambridge Analytica, the political consultancy ........

Renaissance’s first years were spent in a poky office in a Long Island strip mall. Regulators once came calling after recommendations spat out by the early algorithms saw Renaissance nearly cornered the potato market.

......... Failure often loomed. When Renaissance’s first foray into bond markets turned into big losses, Simons admitted to a colleague that “sometimes I look at this and feel I’m just some guy who doesn’t really know what he’s doing”...... Renaissance has enjoyed a golden run the likes of which investing has never seen. When it notched up its first $1m one-day profit in 1990, Simons handed out champagne — but $1m one-day gains quickly “became so frequent that the drinking got a bit out of hand” ........ For all Simons’ undoubted brilliance, the book makes clear that his skill was not inventing complex trading models and algorithms himself. His talent was to spot, nurture and harness beautiful but often combustible minds such as James Ax, Lenny Baum, Elwyn Berlekamp, Henry Laufer, Peter Brown and Mercer........ one of the biggest actors in one of the biggest stories of our time: how machines conquered financial markets.





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Tuesday, September 01, 2015

Arithmetic Is Geometry

An excellent way of multiplication.

Posted by Shah Khalid Muhammad on Monday, May 4, 2015
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Thursday, July 16, 2015

The Great Math Mystery





We have six senses, not five. The fifth is the mind, expressed most purely in imagination, mathematics. Just like with our eyes we see the world in the visible spectrum, with our minds we also see a world that seems to be mathematical. The sky looks blue to us, and the world looks mathematical. We are only "seeing" what we are capable of seeing.
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Tuesday, October 19, 2010

Fractals: Mandelbrot

Fractals And Foodspotting
FoodSpotting Is The Next FourSquare
Fractals: Apple, Windows 95, Netscape, Google, Facebook, Twitter


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