Features
New book by noted art expert Celia Rabinovitch explores many themes
By SIMONE COHEN SCOTT
I first began to write this piece as a review of Celia Rabinovitch’s recently launched book “Duchamp’s Pipe, A Chess Romance”, but it turned out to be much more than a book review.
Celia, if you didn’t know, is a Winnipegger and, ever since we first met, I have thought her to be one of the city’s best kept secrets. She is an internationally known artist, cultural historian, author, educator, scholar, and speaker, and except for some slight exposure here in reent years – speaking at the Rady JCC and at the Remis Forum, she keeps a very low profile in her charming River Heights bungalow.
During the years 2002-2008 Celia was professor and director of the School of Art at the University of Manitoba. Her works have been exhibited at the Winnipeg Art Gallery and at the Plug In Gallery in Winnipeg. Elsewhere in Canada Celia has staged exhibitions at the Emily Carr Gallery of Art and Design and, in 2016, at the University of Victoria, where she was artist in residence. She has had broad exposure in Europe and the United States as well – exhibiting, teaching, and lecturing – in Florence, Vienna, New York, California, Cleveland, and Colorado. Her PhD, from McGill University, was on the history of religions and art history.
We first met in Israel, where she had been invited to give a seminar and lecture at the Israel Museum on components of the surrealism exhibit being held there.
Now – about the book: A number of years back Celia was asked to authenticate the provenance of a smoker’s pipe that had been given by renowned modern artist Marcel Duchamp to Grand Master of Blindfold Chess George Koltanowski who, in turn, had given it much later to Nikki Lastreto, his editor at the San Francisco Chronicle.
Celia’s research skills in the art world are well known, and tracking the path of the spiritual connection through the lives of two men, a game, and an artifact, from the late 19th century, when Duchamp learned to play chess, through to the early 21st century, when the pipe was sold at auction, was right up her alley.
She was able to establish that the pipe did indeed belong to Duchamp, and as such it was sold at auction by Christie’s New York for $87,500 US on the 21st of May 2016 – quite a windfall for Nikki Lastreto.
Celia’s detective work became the matrix for this book. She traces several elements throughout the saga – the two men of course, whose principle pastime was playing chess, but also the nature of the game as an entity in itself, the act of pipe-smoking as another, and time – the thread that weaves the story together.
In the author’s hands, time is not chronological. Celia weaves her story forward and backward as she develops her theme and explores each facet of the ethereal relationship between people and objects. Not to worry, though, because she thoughtfully provides a time-line in the back pages for readers who might like to sort things out.
The story becomes a beautifully written history book of sorts, as the atmosphere of the surrealism period of modern art begins to permeate the senses. It was a time, pre WWI, when certain groups of artists wished to jar the sensibilities of people living in what has since been referred to as “the age of innocence”.
The work that brought Duchamp to worldwide attention was his then shocking painting, ‘Nude Descending a Staircase’, which he entered in the Armory Show in New York in 1913. Later, he became even bolder, positioning a urinal in a photograph and calling it a fountain. (Dada art takes getting used to. Personally, I’m saddened that the artist’s inclination to shock the bourgeoisie has drawn attention away from the skilled painter and original colourist that he was.)
George Koltanowski, International Master of Chess, and Honorary Grand Master, was giving chess exhibitions in Guatemala and Havana, Cuba when the Nazis invaded Belgium. His family in Antwerp, including his mother and his brother, Harry, perished in the Holocaust. The U.S. Consul in Cuba offered him a U.S. visa. George could play chess while blindfolded – and win. He had, he said, a “phonographic memory”, and remembered, once told, what was in each and every square on the chessboard. He made his living at chess, both by playing in exhibits and tournaments all over the world, also by promoting tournaments and chess clubs himself, lecturing, and writing. His column in the San Francisco Chronicle ran for 56 years. In 1986 he was inducted into the U.S. Chess Hall of Fame.
The game itself is another character in this blend of personalities. Chess is comprised of so many exquisitely fascinating features: its age, its forms, and the hypnotic involvement it seems to provoke (all right – call it addictive). Chess clubs were popping up everywhere in that day, some even founded by Duchamp and Koltanowski. Every city they happened to visit needed a venue where they could find partners, although Koltanowski was known to have played against a machine – even an elephant (Ed. note: I din’t know elephants could play chess. Who won the game, Simone?)
Duchamp became obsessed with the game, all but giving up his vocation. He created several sets of chess pieces, which sold successfully . (Although from a well-heeled family, he needed to scrounge for a living like everyone else in Greenwich Village.)
Chess pieces are objets d’art in their own right, but one can also appreciate the artistry that goes into the design of a pipe. A smoker’s pleasure comes from the shape and material – the heft if you like, of the pipe, as much as from the tobacco a smoker uses.
The specific pipe that is the star of the book is a rather chunky, boxy, artifact. It must have been one that Duchamp particularly liked because the author describes the giving of it to George as a gesture of regard, meant to mark the former’s appreciation of their friendship.
If this book were a book club choice, there would be terrific areas for discussion. Every aspect, the times they played chess together, other encounters and journal entries on the part of these two men and their friends, give such nuanced glimpses of character and personality. Chess is – remember, a game of thinking and strategy, although smoking was often a complement to chess in the past: Smoking while studying the board, smoking while visualizing moves, smoking, thinking, imagining, and finally just smoking.
Meanwhile, life, including two world wars, was whipping around the two main protagaonists in the book. Celia has a previous book (2002) entitled “Surrealism and the Sacred: Power, Eros, and the Occult in Modern Art”. That information is important to bear in mind because of the mystic quality the author perceives between people and objects and time, in other words, in existence.
Another Winnipegger, Irwin Lipnowski, has an essay towards the end of this book. Irwin, as we know, is a chess champion in his own right. Here, he speculates on the future of chess cafés in an era subsumed by technology.
Something else interesting about chess: As the Parshas on the last couple of Shabbats were about the naming of Beersheva, I decided to look up that Israeli city on line. Here’s what I came upon, from an article written in October, 2009: “With eight Chess Grand Masters calling Beersheva home, the city has more International Grand Masters per capita than any other city in the world.” Hmm!
“Duchamp’s Pipe, A Chess Romance” was launched via Zoom on November 19th, to an international audience. Celia spoke about her experiences writing the book with Ann McCoy, an artist and writer herself, and their conversation is now on YouTube – a worthwhile watch.
“Duchamp’s Pipe: A Chess Romance”
By Celia Rabinovitch
Published by Pengin Random House, 2020
256 pages
Features
Hacker and Fraud Prevention for Online Gambling Profiles
Safeguard your online casino & sports betting accounts from cyber threats
Follow these 10 vital steps to reinforce your online gambling profile by enabling two-factor authentication, using VPNs, unique passwords and more.
With the global online gambling market projected to reach over $100 billion by 2026, securing your online casino and sportsbook accounts is more critical than ever. As digital wallets swell with winnings so too does the motivation for cybercriminals to steal credentials and loot accounts.
#1. Activate Two-Factor Authentication
Topping the list is two-factor authentication (2FA) – requiring two credentials to login instead of one at FanDuel. Often this entails providing your password plus a one-time code sent via SMS or email.
Per an Oracle study, implementing 2FA would have thwarted 99% of historical cyber attacks that involved stolen credentials.
Most regulated online gambling sites offer 2FA, accessible under account settings. Turn it on immediately for stronger defense.
#2. Never Reuse or Recycle Passwords
A cardinal sin is recycling the same password across multiple sites or services. Once one account is breached, cyber thieves can access more accounts using that same password.
To avoid this, every account deserves a unique, strong password. For simplicity, utilize a password manager app to randomly generate and store site-specific passwords.
#3. Install a VPN for Public Wi-Fi Access
When playing online casino games on shared/open wireless networks, your data flows openly and risks interception. That’s where virtual private networks (VPNs) come in.
VPNs encrypt all network traffic to and from your device. This protects your gambling activity and account credentials from Wi-Fi eavesdroppers. VPNs also disguise your IP address.
Some top-rated services include NordVPN, ExpressVPN and CyberGhost.
#4. Keep Software Updated & Run Anti-Virus Scans
You must keep computers and mobile devices updated with the latest OS and security patches. Postponing critical updates leaves open dangerous holes that malware exploits.
Likewise run reputable anti-virus scans to catch viruses attempting to infiltrate systems and spy on login credentials for financial accounts.
#5. Verify the Security & Encryption of Sites
When signing up at online betting sites and casinos, verify the legitimacy of their security measures:
- Confirm the address starts with HTTPS, not HTTP
- Check that data transmissions are encrypted using at least 128-bit SSL
- Ensure site has proper licensing
- Review privacy policy for data storage and sharing
Reputable sites will display trust badges from companies like Norton and TrustE.
#6. Avoid Account Sharing
While tempting to give friends or relatives access to funded accounts, sharing login credentials is extremely risky. You lose control over deposits/withdrawals while exposing yourself to potential theft.
Instead, gift deposits to other player accounts or refer them to open their own secure accounts.
#7. Beware Account Takeover Scams
Exercise caution if contacted unexpectedly about unusual account activity. Savvy scammers will pretend a breach occurred to trick you into handing over your username and password.
If concerned about account integrity, directly access the site yourself and contact customer support – don’t click any links in unsolicited emails.
#8. Monitor Financial Statements
Carefully review online betting account and credit card statements to detect unauthorized transactions right away. Dispute unrecognized activity ASAP to limit losses.
For further vigilance, some banks offer real-time purchase alerts via email or SMS.
#9. Don’t Save Payment Info
Saving credit card or e-wallet details on gambling sites for faster future deposits also expedites withdrawals – by you and potentially hackers.
Instead, manually enter payment info each time to contain potential damage from any account infiltration.
#10. Create a Secure Email
A strong yet oft-overlooked defense is creating a secure email account strictly for gambling transactions. Keep it completely separate from your personal email to isolate threats.
Use a nickname, enable 2FA and establish a strong password using special characters, numbers, case changes and 15+ letters.
Table: Comparison of Top VPNs for Online Gambling Site Security
| VPN Service | Encryption Standard | Number of Server Locations | Allows P2P Traffic | Number of Simultaneous Connections | Money Back Guarantee |
| NordVPN | AES 256-bit | 5400+ | Yes | 6 | 30 days |
| ExpressVPN | AES 256-bit | 3000+ | Yes | 5 | 30 days |
| CyberGhost | AES 256-bit | 7400+ | Yes | 7 | 45 days |
Fortify Your Online Gambling Fortress
As online casinos and sportsbooks explode in popularity, no player is immune to the growing plague of cyber fraud and account theft.
Guard your profile by enabling two-factor authentication, setting strong passwords, installing critical software updates and more. Also research site security measures and payment options.
Features
Vital Role of True Randomness in Modern Computing
The critical need for true randomness in cryptography, simulations, and more
True randomness is essential for encryption, statistical sampling, simulations, and more computing applications to work effectively. We explore why.
The concept of randomness often evokes thoughts of unpredictability and chance occurrences. However in the world of computing, having access to true randomness is vital for many critical applications to function properly. Without the ability to generate random values and data, key aspects of modern technology simply would not work reliably.
In this article, we will explore what constitutes true randomness from a computational perspective, why it is crucially important, and some of the ways that software and hardware attempt to produce randomness reliably. Gaining insight into this topic highlights the dependence much of digital functionality has on the availability of non-deterministic, uniformly distributed random data.
What Makes Randomness “True”?
For data to be considered truly random from an information theory perspective, values must satisfy key mathematical and statistical qualities, for example at Lucky Seven Casino. True randomness implies meeting three core criteria:
- Uniform distribution — All potential values have an equal probability of occurring so that no bias exists towards certain numbers.
- Independence — The value at any position does not relate to or depends on values at other positions. Previous numbers do not influence future ones.
- Unpredictability — Knowing some values provides no useful information to predict other values. Guessing upcoming numbers is mathematically impossible.
Hence, true randomness requires generated data featuring high entropy (information density) with no observable patterns or correlations over any length or time period analyzed. Values must pass various statisticatests of randomness to qualify. True randomness exists only in specific natural phenomena scientists believe exhibit fundamental uncertainty such as radioactive decay. Computational methods can attempt to produce randomness but technically generate only an approximation usually called pseudo-randomness. However for many practical purposes, computationally generated randomness proves sufficient if it passes robust statistical testing.
Why True Randomness Matters Cryptography
Arguably, the area with the most crucial dependence on true randomness is cryptography. All modern encryption technologies require random number generation to ensure security. Encryption systems work by utilizing random numbers for:
- Key generation
- Initialization vectors
- Salts
- Nonces
- Padding
Any bias, predictability or correlation within random values used for the above purposes significantly compromises encryption protocols and introduces vulnerabilities. With trillions of dollars transferred online daily and vast amounts of sensitive data stored digitally, safeguarding cryptography requires high-quality random number generation rooted in solid entropy sources.
Simulations & Modeling
Outside of security, many more computing applications need randomness to operate correctly per their design intent. Monte Carlo simulations extensively utilize randomness to model complex real-world behaviors by running many iterations with differing random inputs. Financial analysis, climate modeling, nuclear reactions and molecular behavior represent common Monte Carlo simulation applications.
Games, Artificial Intelligence & Machine Learning
Gaming, AI and ML commonly incorporate randomness to increase variation, introduce unpredictability, and improve realism. For example, non-player characters in video games use randomness for movement, dialog and behavior to feel more lifelike and less robotic. AI/ML leverage randomness to train networks more thoroughly against a wider possibility space and build more resilient models less prone to biases.
Generating True Randomness via Hardware
Given the pervasive need for genuine randomness across computing, how do software and hardware reliably produce it? Most systems today use either specialized hardware random number generators or hybrid combinations of hardware and software.
Hardware options utilize the inherent randomness within low-level physical phenomena to produce entropy. Different techniques for generating randomness exist but most hardware implementations focus on three main sources:
- Thermal Noise
- Semiconductor Quantum Physics
- Chaotic Oscillator Outputs
| Generator Type | Description |
| Thermal Noise | Amplifies and extracts random electrical noise from resistor thermal vibrations |
| Quantum Physics | Leverages quantum mechanical properties like photon emission timing from LEDs/lasers |
| Chaotic Circuits | Uses unpredictable oscillator circuit outputs from chaos theory |
Semiconductor-based solutions can generate high bitrates up to 5Gbps using compact modern chip fabrication allowing extensive harvestingof entropy. However these sources derive from complex, random physical processes proving impossible to predict or fully model mathematically. This unpredictability provides excellent entropy quality unattainable via software algorithms alone.
Most general-purpose computers now integrate random number generators within CPUs allowing applications access to decent hardware-based random data. For the highest security use cases, dedicated standalone hardware random number generators exist exceeding >100Gbps speeds. Hence accessing genuine randomness is available today even on common computing devices.
Cryptographically Secure Pseudo-Random Number Generators
While hardware mechanisms utilize hard-to-predict physical phenomena to produce randomness, software solutions must take a different approach. Algorithmically-generated randomness cannot achieve true randomness from a physics perspective. However clever mathematical techniques like cyclical algorithms can generate randomness passing many statistical tests of randomness within their output bit length limits.
Cryptographically secure pseudo-random number generators (CSPRNG) serve as the premier software-based method for generating randomness. CSPRNGs work by repeatedly applying cryptographic primitives like hash or cipher functions on initial random seed values. This process produces a chain of output bits not reproducible without the original seed key. Leading CSPRNG algorithms include:
- Hash_DRBG
- HMAC_DRBG
- CTR_DRBG
Software libraries implement these CSPRNGs so developers can integrate quality randomness into applications with proper seeding. Seeding establishes the initial starting point for randomness generation using an entropy source like hardware random number generators or timing variability.
CSPRNGs allow the production of vast quantities of randomized data for any purpose needed. Compared to hardware mechanisms limited by physics on maximum speeds, algorithms scale boundlessly in the bits created as long as adequate computational power exists.
Yet key differences between software and hardware randomness remain. While CSPRNG outputs pass statistical testing and contain no observable patterns, their pseudo-randomness means given the same seed, the exact same value sequence will generate each time. Also, if a CSPRNG algorithm or implementation has flaws, adversaries could predict and exploit output resulting in compromised security. Still, with proper cryptographic design and regular reseeding, CSPRNGs provide quality randomness for most software needs.
Conclusion
From the above exploration, we see true randomness plays a pivotal role across computing – from cybersecurity to simulations and beyond. While no substitutes for true physically-derived entropy exist, modern hardware and hybrid hardware-software solutions provide abundant randomness for practical usage.
However as computing continues evolving with new technologies like quantum, ensuring high-quality randomness generation tackles emerging information security and system reliability challenges. Access to ample true randomness stands necessary now for current computing functionality and lays the foundation for future innovation.
Features
News from Israeli hotels
Introduction: The current wars in Gaza and Lebanon have had a disastrous effect on Israeli tourism. Recently we were contacted by a friend in the advertising business in Israel who asked us whether we would help to promote a couple of well-known Israeli hotels – who are hoping for a huge rebound in bookings once the wars come to an end.
Here is news about two leading Israeli hotels:
Mr. Roy Avidor is the new GM at The Ritz-Carlton, Herzliya.
We are delighted to welcome Roy Avidor as the new General Manager of The Ritz-Carlton, Herzliya!
Roy brings over a decade of leadership in the international hospitality industry, with a proven track record of operational excellence.
Most recently, Roy served as Director of Operations at the Sheraton Grand Tel Aviv, where he oversaw daily operations across multiple departments, always ensuring the highest standards of service. Prior to that, he held management positions at Celebrity Cruise Line and Isrotel Hotel Chain.
Roy’s extensive background in luxury hospitality, combined with his passion for service, makes him the perfect addition to our team and to his newest position as General Manager.
Boaz Elani Appointed General Manager of Sheraton Grand Hotel Tel Aviv
Boaz Elani has been named the new General Manager of the Sheraton Grand Hotel Tel Aviv, a prestigious property within the global luxury Marriott portfolio.
Bringing extensive expertise in luxury hospitality, Boaz most recently served as the General Manager of the Ritz-Carlton Herzliya, also part of the Marriott group. During his three-year tenure, he successfully navigated the hotel through two major challenges: the COVID-19 pandemic and the conflict in Israel. His steadfast dedication to exceptional service significantly enhanced guest satisfaction, solidifying the hotel’s reputation as a premier destination.
“I am honored by Marriott’s trust in me and thrilled to join the Sheraton Grand Tel Aviv team,” said Boaz. “This hotel holds a distinguished place as one of Israel’s finest and most iconic. Following its comprehensive renovation, we are committed to delivering unmatched experiences for our guests and continuing its tradition of excellence.”
The Sheraton Grand Tel Aviv, overlooking the Mediterranean, features 320 beautifully redesigned rooms, including premium, deluxe, and club accommodations, along with luxurious suites. Guests staying in club-level rooms enjoy exclusive access to the 18th-floor lounge, offering breathtaking sea views. The recent renovations incorporate modern aesthetics with natural, seaside-inspired materials, creating a serene and inviting ambiance.
The hotel boasts a range of world-class amenities, including a newly updated beachfront pool, a popular sushi bar open to both guests and the public, and a renowned gourmet breakfast. Its versatile meeting spaces and state-of-the-art conference halls have garnered international acclaim, earning it the 2024 World MICE Award for Best Event and Conference Hotel.
In line with Marriott’s global commitment to sustainability, the Sheraton Grand Tel Aviv has held Green Key Certification since 2014, highlighting its dedication to environmentally responsible practices.
With Boaz Elani at the helm, the Sheraton Grand Tel Aviv is poised to further elevate its status as a premier destination for both leisure and business travelers.
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