Features
I’m a veteran expert in stopping epidemics. Here’s why Jewish institutions should cancel everything.
By GARY SLUTKIN
CHICAGO (JTA) — I am an infectious disease epidemiologist who worked at the World Health Organization on epidemics in over 25 countries around the world.
As a physician and member of the Jewish community, I prize the Jewish teaching that places the saving of a life above all other laws and practices. It is my expert opinion that as a result of the emergence of the novel coronavirus COVID-19, the Jewish community (along with all religious and community groups) must change what we are doing immediately: We need to suspend our usual religious services and social gatherings.
Many communities have recognized the emergency and already made this change, and more and more are doing so in the hours before Shabbat begins. But others are still making small-scale changes or contemplating what to do next.
Each community and individual will have to work within their own traditions and norms. But as an epidemiologist, I know that these recommendations will save lives.
I have worked to help stop epidemics of many sizes and infectious patterns — from AIDS in Africa and Asia, to tuberculosis in San Francisco, to cholera in Somalia. I also ran the Intervention Unit for WHO, which guided countries in epidemic control and the behavioral changes needed.
All serious epidemics disrupt populations, and all require important changes to what the population does. These changes are necessary and urgent to avoid preventable deaths and the spread of infections that cause more preventable deaths. That’s why I recommend that we as Jews temporarily but immediately refrain from attending synagogues and other in-person meetings, no matter whether we live in an area where there is a known case of COVID-19 or not.
This virus is easily transmitted through droplets in the air, through hand to hand (to face) contact and on surfaces, and is much more dangerous than the seasonal flu. The seriousness and lethality of this virus to older people is exceptionally high, and other adults also have higher risks of serious illness as well as high likelihoods of causing transmission to older people.
First and foremost, we must take these steps because we value human life: our own lives, our families, and the greater community and the world around us. Stopping group contact is an essential method right now for preventing ourselves from getting this easily transmitted and highly lethal virus, and also to stop any spread to our families and the community.
Mistakes and delays and less than perfect compliance with new behaviors and practices can be deadly. We have seen this happen already in other countries, like Italy and elsewhere in Europe, and we are witnessing the active spread in Seattle and New York state. Other cities and parts of cities will see lethal outbreaks if they are late or noncompliant.
Complacency, denial and overconfidence are common among us, but there is no place for this now.
You may get pushback from your family or friends, and you may feel social pressure to go about business as usual. But this is not a time to care about that — now is the time to do as much as we can to prevent the spread of disease and death. Resist these impulses and counter arguments.
This pandemic will go on for at least several months – we still don’t know how long. As we learn more, we will be better able to make more localized and informed decisions about when and how to adjust or attempt to get back to normal, but now is the time to stop any possible potential for getting infected yourself and causing illness, perhaps serious illness to yourself — or for unknowingly infecting others, which you cannot judge by appearances of health right now.
Major global and local crises require these adjustments but also challenge us to increase our humanity and the best parts of our communal lives.
Synagogues and our religious communities present both significant challenges and value in that regard. However, we must now learn to balance our spiritual and emotional health with the real physical risks to our health today.
Therefore, unfortunately:
We must suspend our usual religious services and gatherings now.
Crowds and close contact risk invisible spread and disease to you and others, and you don’t know who might be carrying the virus.
In addition, in our daily lives:
Cancel and don’t attend other non-essential in-person meetings.
Learning can be done on conference calls, including video services like Zoom, Skype and Google Hangouts. The same goes for meetings. It may sound harsh, but remember, the risk to what we schedule isn’t simply inside the synagogue walls. It also takes place for the participants on transportation, street encounters, etc.
We must stop (“ban”) all handshaking, as well as hugs and embraces.
Even the “fist bump” and “elbow rub” puts two individuals in closer proximity than is optimal and I recommend we stop this entirely.
That doesn’t mean we can’t greet one another with respect and warmth. The heart, “lev” in Hebrew, has been taught in Jewish and other traditions to be the seat of spirituality. Consider alternatively placing your hand to your heart and bowing your head in acknowledgement of an encounter with a fellow community member. It may feel awkward at first, but can help to maintain critical social distance while honoring the encounter. It might even feel good.
Practice frequent and thorough handwashing.
I cannot overemphasize frequent and thorough handwashing throughout the day. An incredibly frequent means of spread of respiratory pathogens is a sick person touching their face, shaking hands with another person and that person then touching their face. We touch our face dozens of times a day, mostly unconsciously. This practice with an unwashed hand is enough to cause the infection through your eye, nose or mouth touched. Develop a different relationship to your hands, be aware if you have touched a door knob, railing or other surface someone may have touched. These surfaces also harbor the virus if they have been touched by someone sick or incubating the infection.
Keep social distances.
It is best to be further away from people than we usually are. This may seem weird or unusual, but it means in the grocery store, or wherever you go, try to be 6 feet or more away from others.
If you are sick with a fever or cough, stay home.
Call your doctor to determine if you really need to go in. Some medical facilities are getting full or risk being so, not everything is coronavirus and there are no treatments for now. If you are having shortness of breath or feel seriously ill, of course seek care as usual.
For those who are holding small services at home:
Don’t kiss communally shared objects.
Prayer books, mezuzot and the like should not be kissed for the duration. Even touching communal objects or surfaces should be avoided, unless you can assure handwashing immediately after.
Stop sharing challah and kiddush cups — and consider how and if you need to serve food.
It is very hard to ensure not spreading respiratory viruses by serving and sharing food.
Focus on the Jewish tradition of acts of lovingkindness.
While this is not an infection control recommendation, it’s an important Jewish value. Do you have a friend or family member or neighbor at high risk for whom you can run an errand? Many people are at home now working, in self-quarantine or just trying to stay safe. Check in on them safely. Pick up the phone and see how they are doing. See if they need an errand run for them without potentially passing on an invisible infection.
The isolation that can help protect our physical health should not erode our mental health. This important part of Jewish life can be adapted — perhaps not so easily, but we will figure out ways to do this with care and understanding.
While this is a moment for in-person synagogue activities to pause, this is an ever more critical moment for the role synagogue can play in the lives of people who are isolated, fearful or just in need of comfort. Nearly everyone is in some level of emotional and mental distress over what is happening.
There are brain processes we have as invisible to the eye, yet as powerful as microbial processes and just as crucial. Even in good times, our synagogues and religious communities represent crucial elements in our own sense of well-being and social safety net. This is all the more true during a frightening global crisis.
While nothing can fully replace human contact, our phones and computers offer a great means to connect in full safety. This is the moment for rabbis and synagogue leadership to be most mindful of preserving human life by using all technology tools — including the phone, of course — to make our communities virtual but still alive until this pandemic is under control. Which we are all now helping to ensure.
After decades of working to stop epidemics, I saw many very tough situations and many hard days, weeks and months. Epidemics follow a curve up and then back down, and eventually they end. It is up to us and our most important and trusted institutions to stop the spread now — and to keep the curve of infections and deaths as small and short as possible.
Better days are ahead. Our synagogues will again ring with beautiful voices and much joy. We will get there with these strong and proactive steps to ensure as many beautiful voices as possible are there to join us.
The views and opinions expressed in this article are those of the author and do not necessarily reflect the views of JTA or its parent company, 70 Faces Media.
Features
Statistical Volatility Models in Slot Mechanics: Extended Expert Analysis Informed by Pistolo Casino
Analytical reviews of slot volatility often reference ecosystems similar to those found at Pistolo casino. Within the gambling research community, volatility is understood not as a marketing attribute, but as a technical framework that shapes how digital slot systems distribute outcomes over time. Expanding on earlier overviews, this extended analysis examines the deeper mathematical logic behind volatility classes, as well as their implications for long-term behavioural modelling.
Volatility as a Mathematical Architecture
Slot volatility is commonly divided into high-, medium-, and low-risk models, yet this simplified categorisation hides the structural complexity underneath. Developers configure several layers of probability weighting, which include:
- Event Density Layers – Each slot contains multiple weighted segments representing minor, medium, and rare outcomes.
- Return Frequency Curves – These curves dictate how the distribution of payouts drifts around the long-term equilibrium.
- Reel Weighting Matrices – Symbol appearance probability is shaped not only by frequency but also by conditional dependencies within each reel strip.
Research drawing on examples parallel to Pistolo casino shows that modern slots increasingly use modular probability blocks, making outcome variance more flexible and more precisely adjustable during development.
Behavioural Interpretation of Volatility Signals
From a player analytics perspective, volatility modelling helps identify how different user groups respond to varying risk structures. High-volatility mechanics frequently attract users who seek extended tension cycles and the possibility of occasional strong outcomes, while low-volatility systems are associated with steady-state gameplay and longer average session times.
Analysts also examine “volatility fatigue,” a concept describing the moment when prolonged dry cycles reduce engagement. By tracking these patterns, researchers can map how changes in event spacing affect decision-making, bet sizing, and persistence.
Simulation Methodology for Evaluating Volatility Accuracy
Technical audits rely heavily on large-scale simulations—sometimes exceeding fifty million iterations — to verify that the modelled volatility aligns with theoretical expectations. Key indicators include:
- Hit rate stability across long sequences
- Distribution symmetry, ensuring outcomes do not drift into accidental bias
- Deviation corridors, which define acceptable ranges for short-term anomalies
- Return-to-player convergence, showing whether the model equilibrates over time
When discrepancies appear, developers may adjust symbol weighting, probability intervals, or feature-trigger frequency until the system reaches internal balance consistent with regulatory and mathematical demands.
Volatility’s Role in Market Diversity
Volatility modelling helps explain the substantial variety between slot titles. Instead of relying solely on themes or graphics, modern game design differentiates titles by emotional rhythm and progression speed. This technical approach has led to more deliberate pacing structures where reward cycles, anticipation building, and event clustering are calibrated through mathematical systems rather than subjective intuition.
Conclusion
Volatility remains one of the most precise and data-driven components of slot design. Its study provides insight into outcome diversity, behavioural responses, and long-term predictability. Research frameworks referencing platforms comparable to Pistolo Casino highlight how volatility models shape modern gambling environments through measurable probability engineering and large-scale simulation.
Features
Bias in America’s Colleges Produced Modern Anti-Zionism
By HENRY SREBRNIK Jon A. Shields, Yuval Avnur, and Stephanie Muravchik, professors at the Claremont Colleges in California, have just completed a study, “Closed Classrooms? An Analysis of College Syllabi on Contentious Issues,” published July 10, 2025, that draws on a database of millions of college syllabi to explore how professors teach three of the most contentious topics: racial bias in the criminal justice system, the Israel-Palestine conflict, and the ethics of abortion.
They used a unique database of college syllabi collected by the “Open Syllabus Project” (OSP). The OSP has amassed millions of syllabi from around the world primarily by scraping them from university websites. They date as far back as 2008, though a majority are from the last ten years. Most of the data comes from universities in the United States, Britain, Canada, and Australia.
“Since all these issues sharply divide scholars, we wanted to know whether students were expected to read a wide or narrow range of perspectives on them. We wondered how well professors are introducing students to the moral and political controversies that divide intellectuals and roil our democracy. Not well, as it turns out.”
In the summary of their findings, “Professors Need to Diversify What They Teach,” they report that they found a total lack of ideological diversity. “Across each issue we found that the academic norm is to shield students from some of our most important disagreements.”
Teaching of Israel and Palestine is, perhaps no surprise, totally lopsided, and we’ve seen the consequences since October 7, 2023. Staunchly anti-Zionist texts — those that question the moral legitimacy of the Israeli state — are commonly assigned. Rashid Khalidi, the retired professor of Modern Arab Studies at Columbia, is the most popular author on this topic in the database. A Palestinian American and adviser to the Palestine Liberation Organization delegation in the 1990s, Khalidi places the blame on Israel for failing to resolve the conflict and sees the country’s existence as a consequence of settler-colonialism.
The problem is not the teaching of Khalidi itself, as some on the American right might insist. To the contrary, it is important for students to encounter voices like Khalidi’s. The problem is who he is usually taught with. Generally, Khalidi is taught with other critics of Israel, such as Charles D. Smith, Ilan Pappé, and James Gelvin.
Not only is Khalidi’s work rarely assigned alongside prominent critics, those critics seem to hardly get taught at all. They include Israel: A Concise History of a Nation Reborn by Daniel Gordis, a professor at Shalem College in Israel. Gordis’s book appears only 22 times in the syllabus database. Another example is the work of Efraim Karsh, a prominent historian. His widely cited classic, Fabricating Israeli History, appears just 24 times.
For most students, though, any exposure to the conflict begins and ends with Edward Said’s Orientalism, first published in 1978. Said is the intellectual godfather of so many of today’s scholars of the Middle East, thanks in no small part to this classic book. Said was a Palestinian-American academic, literary critic, and political activist from a prominent Christian family. Educated at Princeton and Harvard Universities, two of America’s most distinguished centres of higher learning, he taught at Columbia University, another Ivy League institution, until his death in 2003.
Said was no crude antisemite. His writings were aimed at academics and intellectuals and he has, in my opinion, done more damage to the Jewish people than anyone else after 1945. Said claimed to be the first scholar to “culturally and politically” identify “wholeheartedly with the Arabs.” But he was also a political activist for the Palestinian movement opposing the existence of Israel.
Said warned PLO leader Yasir Arafat that if the conflict remained local, they’d lose. Join “the universal political struggle against colonialism and imperialism,” with the Palestinians as freedom fighters paralleling “Vietnam, Algeria, Cuba, and black Africa,” he advised.
(In this he was not the first, though. Fayez Sayegh, a Syrian intellectual who departed for the United States and completed his Ph.D. at Georgetown University in 1949, preceded him. Also an academic, his 1965 monograph Zionist Colonialism in Palestine stands as the first intellectual articulation of Zionism as a settler colonial enterprise, arguing that the analytical frameworks applied to Vietnam and Algeria apply equally to Palestine. The treatise situated Zionism within European colonialism while presenting it as uniquely pernicious.)
Israel’s post–Six-Day War territorial expansion helped Said frame Israel as “an occupying power” in a 1979 manifesto titled The Question of Palestine. Alleging racial discrimination as the key motive was a means of transforming the “Zionist settler in Palestine” into an analogue of “white settlers in Africa.” That charge gained traction in a post-Sixties universe of civil rights, anti-imperialism, anti-colonialism, and Western self-abnegation. The work sought to turn the tables on the prevailing American understanding of Israel: It is not, in fact, an outpost of liberal democracy or refuge from antisemitism, but an instrument of white supremacy.
Orientalism popularized a framework through which today’s advocates on behalf of Palestinians understand their struggle against the state of Israel and the West generally. Said casts the Western world as the villains of history and peoples of the East as its noble victims.
The essence of the book, Said concluded, is the “ineradicable distinction between Western superiority and Oriental inferiority.” It falsely affirms “an absolute and systematic difference between the West, which is rational, developed, humane, superior, and the Orient, which is aberrant, undeveloped, inferior.”
So it was impossible to take Zionism seriously as one among the myriad nationalist movements that emerged in the nineteenth century, much less to see Israel itself as a land of refugees or the ancestral homeland of Jews. And, indeed, Said’s Orientalism singles out Israel for special rebuke, suggesting that the state could be justified only if one accepted the xenophobic ideology at the core of Western civilization. Israel’s defenders, particularly those who lament the lack of democracy in the Middle East and fault Arabs for their militancy, represent the “culmination of Orientalism.”
Said is widely acknowledged as the godfather of the emerging field of postcolonial studies, and his views have profoundly shaped the study of the Middle East. Said also inspired – and in some cases directly mentored – a generation of anti-Zionist U.S. scholars whose dominance in the academic study of the area is unquestionable today.
The political left that emerged trained itself to read every conflict as the aftershock of colonialism. The ideological narrative of oppression and resistance allowed even the jihadist to become a post-colonial rebel.
It’s hard to overstate the academic influence of Orientalism. The authors note that “As of this writing, it has been cited nearly 90 thousand times. It is also the 16th most assigned text in the OSP database, appearing in nearly 16 thousand courses.” Orientalism is among the most popular books assigned in the United States, showing up in nearly 4,000 courses in the syllabus database. Said’s work appears in 6,732 courses in U.S. colleges and universities.
But although it was a major source of controversy, both then and now, it is rarely assigned with any of the critics Said sparred with, like Bernard Lewis, Ian Buruma, or Samuel Huntington. Instead, it’s most often taught with books by fellow luminaries of the postmodern left, such as Frantz Fanon and Judith Butler.
All these ideas are now embedded into diversity, equity, and inclusion identity politics, and “humanitarian” outrage over supposed Israeli “settler-colonialism,” “genocide,” and “apartheid.”
The ground for the massive pro-Hamas college and university encampments, and attacks on Jewish students, was prepared decades ago. The long march of progressives through American institutions over the past decades has taken its toll on society.
Henry Srebrnik is a professor of political science at the University of Prince Edward Island.
Features
Exchange Rate Factors: What Global Events Mean for Savvy Investors
When Russia invaded Ukraine in 2022, it created ripples in all financial markets, including currency markets. The Euro weakened while the dollar surged and emerging market currencies wobbled. Global factors can quickly affect financial markets and shake established trends. Apart from such rare events, currencies tend to change their price because of interest rates, inflation, and overall investor confidence. For investors managing money abroad, understanding these movements is critical to avoid losses and mitigate risks.
Below, we will break down how global political, economic, and cultural events influence exchange rates, with insights for savvy investors.
Economic factors
There are several key exchange rate factors with a consistent history of shaking financial markets. These factors include inflation, interest rates, trade balances, employment rates, and so on. Since economic factors are shaping markets almost daily, we start with those.
Inflation and interest rates
Inflation and interest rates are closely connected as one can easily affect the other. When inflation rises, central banks step in and raise interest rates to reduce inflation, and when inflation is lower, central banks can lower interest rates to make borrowing money cheaper. As a result, investors closely monitor these two metrics to anticipate changes in interest rates. Higher inflation makes currencies weaker, and whenever banks change the rates, the changes are immediately reflected in global currency rates. In the United States, the Federal Reserve is the central bank that sets interest rates in the country.
Trade balances and economic growth
A country that exports more than it imports has a stronger demand for its currency. More demand equals a stronger currency. However, the Japanese yen was always weaker against the dollar because the BOJ of Japan tends to have super low rates near 0 to support its exporters. Economic growth also increases demand for local currency as more investors try to invest in the country’s economy. Long-term investors often track this data to detect early signs of any changes in currency strength.
Political and geopolitical factors
Elections, sanctions, and overall political stability are also crucial factors. If the country gets under sanctions, its economy crumbles and its currency becomes inflationary, losing its value quickly. Elections are also crucial for a currency’s strength. Geopolitical events can have a serious impact on the currency as well. The most obvious example is the 2016 Brexit events that made GBP lose its value rapidly and violently. Global conflicts, such as wars, can seriously impact global financial assets, especially currency markets. When tensions are high, safe-haven currencies like USD and CHF (Swiss Franc) become very popular among investors as they seek a safe place to protect their capital.
Cultural and social factors
People like tourists, workers, and diaspora communities can shape currencies as well. Tourism usually drives seasonal demand, and countries that are popular destinations during certain seasons experience their currency appreciation as demand spikes. The perception matters as countries seen as safe and opportunity-rich tend to attract more investors, solidifying their currency strength.
Technology and innovation
Technology is seriously affecting everything, especially the financial sector. Digital payment systems, blockchain technology, and fintech startups have made it easy and swift to move money around. Cryptos and stablecoins enable investors to protect their capital using stablecoins during volatile times. The latest trend among banks is to work on CBDCs, which signals a new era where national currencies are blended with technology and blockchain. Despite this, currencies, even in their crypto form, will continue to be influenced by all major factors mentioned above, and knowing how these factors impact your currency is key to keeping your capital safe from risks.
Practical lessons for savvy investors
So, what do all these factors teach us about global currency rates and investing strategies? The key lies in proper preparations and anticipation. Monitoring macro trends, policy announcements, and major geopolitical and political developments is critical.
Diversify
The number one method which is used by professional investors is diversification. This simply means to spread your risks across a basket of assets. By not investing all your capital in one instrument, you can mitigate risks. If one asset experiences a loss, other ones will counter it with returns. Building a diversified portfolio is key to properly diversifying. For example: divide your capital to buy stocks, commodities, currencies, and cryptos so that if one fails to perform, others will counter it. This ensures a stable income without unnecessary losses in the long run.
Hedge
Forex options and ETFs are great hedging assets. Forex options let investors lock in an exchange rate for a future date, which is very useful if you expect volatility but want stability. Currency ETFs, on the other hand, track specific currencies or a basket of currencies and allow easy trading or protection without trading forex directly, but they are still risky.
Monitor the economic calendar
Economic calendar is a free online tool that aggregates important macroeconomic news data such as interest rate decisions, CPI, inflation, employment rates, central bank announcements and speeches, and other crucial information. By monitoring them, investors can always know when important news data will be released, and they can postpone their investment decisions to avoid volatile times and only invest after the main trend is determined.