
What we’re about
"Scientific Skepticism" is a social movement that began in the 1970s to investigate & debunk topics like ESP, faith healing, astrology, UFOs, ghosts, and other "paranormal" phenomena. Skepticism was essentially a pro-science movement in reaction against the rise of New Age mysticism on the left and Christian fundamentalism on the right. Over time, the skeptic movement has addressed other debates about the dividing lines between science & pseudoscience, medicine & quackery, history & mythology, reason & faith, etc., and has tried to ascertain why people often hold irrational beliefs and how they might be persuaded to adopt more evidence-based beliefs.
"Skeptics In The Pub" started in London in 1999 as an informal social event designed to promote fellowship and social networking among scientific skeptics, free thinkers, rationalists, science enthusiasts, and other kindred spirits. The group is now held in various forms around the world, with well over a hundred local chapters.
The Philadelphia chapter of "Skeptics in the Pub" was founded back in 2014 and hosts bi-weekly group discussions on a range of topics related to science and rationality. There's several things that set our group apart from many other skeptic groups out there:
(1) While most Skeptics in the Pub chapters rely on guest lecturers, we're primarily an intellectual discussion group. That means that our regular bi-weekly meetups have a discussion topic and require some preparation and involve active participation.
(2) Most other chapters of Skeptics in the Pub host their events in "pubs" as the name suggests, but we found them to be too loud and shifted to cafes in 2017. However, since the COVID pandemic began in 2020, most of our events have moved online. Even with the pandemic over, we've found that online events have a big advantage in terms of being able to attract participants from all over America and even overseas, rather than just catering to people in the Philly metro area.
(3) When it comes to addressing pseudoscience & the paranormal, we tend to address controversies among serious scientists & scholars that aren't clear cut rather than just debunking fringe beliefs like homeopathy, Flat Earth, Bigfoot, ghosts & alien abductions for the hundredth time. We typically only address pseudo-scientific beliefs once they become widespread enough to cause major risks or interfere with major benefits to society (e.g. the anti-vaccine, anti-flouride, anti-GMO, anti-nuclear power, AI doomer, AIDS denial, COVID denial, and climate change denial movements). We also try to understand the social & psychological factors behind pseudoscientific beliefs.
(4) While we champion the scientific approach to empirical questions, we're careful to avoid a common pitfall of some skeptic groups -- i.e. "scientism" -- the application of science to non-empirical questions in fields like ethics, aesthetics & political philosophy. Also, while we generally defer to the scientific establishment, we also occasionally act as critics when it comes to issues like funding biases, academic fraud, and the replication crisis.
(5) When we cover conspiracy theories, we tend to focus less on bizarre beliefs about "Men in Black" and the "Illuminati" in favor of somewhat more plausible allegations of political corruption, corporate malfeasance, police cover-ups, covert military actions, domestic spying, etc. We also look at how low science literacy & internet echo chambers lead many normal people to go beyond realistic concerns about Big Government & Big Business and embrace irrational conspiracy theories.
(6) We tend to cover "pseudo-history" more than other skeptic groups. While the skeptic movement has done a fairly good job debunking far-out claims about "ancient aliens" & lost civilizations like Atlantis, we tend to focus more on dubious historical claims that have bigger implications for modern-day politics like the various cases of genocide denial (e.g. Holocaust, Holodomor), Neo-Confederate "Lost Cause" apologetics about the Civil War, the 1619 Project's revisionism, the antisemitic theories of the Black Hebrew Israelites & the Nation of Islam, and historical conspiracy theories about Pearl Harbor, the JFK assassination, the Apollo moon landing, the 9/11 attacks, etc. We also occasionally cover lighter topics related to mythology, folklore & urban legends from both a historical & socio-psychological perspective.
(7) When we address problems with the news media, instead of debunking obvious hoaxes from junk tabloids & "fake news" websites, we tend to focus on problems within the mainstream media coverage, such as the exaggeration of scientific findings in "pop science" journalism, political biases that corrupt journalistic objectivity, and the fear-mongering that drives "moral panics". We also try to help members cut through conflicting accounts of highly polarizing events, like foreign wars or domestic social turmoil, and find out what's probably true and what's unwarranted speculation or outright disinformation.
(8) Although we occasionally address ethical & political issues, we do so from a non-partisan, empirical approach. Any politician, pundit or political party that makes claims that are unsupported by logic & evidence are open for criticism. There's also no expectation that members have specific ethical or political commitments, beyond a commitment to the use of reason & empiricism to make arguments and support for free inquiry & open debate. Whether or not atheists should adopt specific secular philosophies like "ethical humanism", "objectivism", "transhumanism", "longtermism", "effective altruism", etc., or even whether or not a scientific worldview can support certain ethical or political principles is an open question as far as this group is concerned.
(9) While most skeptic groups double as atheist groups, this meetup doesn't require members to have any particular position on abstract metaphysical questions like the existence or non-existence of a "higher power” or "ground of being", free will vs determinism, the nature of the "self", the hard problem of consciousness, panpsychism, the simulation hypothesis, the multiverse, etc. While many of the supernatural claims made by traditional organized religions are either unfalsifiable or don't withstand scientific scrutiny, the skeptic movement's major figures have had a variety of metaphysical positions, from Carl Sagan's pantheism to Richard Dawkins' anti-theism, and from Paul Kurtz's "ignosticism" to Martin Gardner's "fideism". When we cover religious issues, rather than debating the existence of God or creationism vs evolution for the thousandth time, we often focus on topics related to the psychology & sociology of religion, or we look at the ways in which the frontiers of physics can inform metaphysical speculation.
If this sounds interesting to you, we hope you'll join us!
Upcoming events (4)
See all- Skeptical Inquirer Presents: "History of Medical Pseudoscience"Link visible for attendees
What is "Skeptical Inquirer Presents"?
Skeptical Inquirer is a bimonthly American magazine published by the Committee for Skeptical Inquiry dedicated to promoting science and reason. They've recently introduced "Skeptical Inquirer Presents" - live online presentations from leading experts in science, skepticism, medicine, media, activism, and advocacy, all devoted to the cause of advancing science over pseudoscience, media literacy over conspiracy theories, and critical thinking over magical thinking.Every two weeks, Skeptical Inquirer Presents will bring you a new live event, emceed by the brilliant and hilarious comedian Leighann Lord, co-host of the Point of Inquiry podcast. And it’s all happening from the comfort of your laptop (or any other screen), wherever you are in the world, because big ideas can’t be contained in conference halls.
How can I participate?
Free registration is required for these online lectures. See below for details and registration, and check back for additional events.For full details and to register for this event, go to:
https://skepticalinquirer.org/video/invisible-rulers-renee-diresta/Once you register, keep an eye out for a confirmation email from Zoom with instructions on how to join the presentation.
If you have difficulties registering or logging into Zoom for the event, please submit any questions to: zoom@centerforinquiry.org
Event Title: "History of Medical Pseudoscience: A Collection of Quackery" with Robert Greenspan
Details for this event:
Medicine became a science only a few hundred years ago, offering physicians the opportunity to save millions of lives. Unfortunately, some medical practitioners have distorted well-tested medical principles for their personal profit to the detriment of those who suffer the most.Join us on Thursday, September 18, at 7:00 p.m. ET for a Skeptical Inquirer Presents livestream with Robert Greenspan, MD. This presentation will explore the difference between science and pseudoscience along with the risks faced by those who pursue the latter. As featured in Dr. Greenspan’s book, Medicine: Perspectives in History and Art, this event includes artifacts from his quack medicine collection, one of the largest collections in the world.
NOTE: This live Zoom event is free, but advance registration is required, so sign up right now.
About the Speaker:
* Robert Greenspan, MD, retired from a forty-seven-year private practice of nephrology several years ago and has always been interested in the history of medicine, which he teaches at the University of Maryland. The skill with which some have misled the public regarding appropriate and available medical care has both interested and bothered him.......................................................................................................................
...................................................................................................................... - M.A. Lecture: "The Paranormal in Post-War Popular Culture"Link visible for attendees
Event Title: "I Remember Lemuria: The Paranormal in Post-War Popular Culture" with J. W. Dotson, MD
Event Date: Monday, Sept. 8, 2025 at 7:00 PM EDT
Ticketing Info: FREE - but you must still register at: https://www.morbidanatomy.org/events-tickets/p/free-online-talk-i-remember-lemuria-the-paranormal-in-post-war-popular-culture-with-j-w-dotson-md-september-22
Ticketholders: A Zoom invite is sent out two hours before the event to the email used at checkout. Please check your spam folder and if not received, email info.morbidanatomy@gmail.com. (Video playback of this event is only available to Morbid Anatomy's Patreon members.)
Event Description:
In the late 1940s, the flying saucer craze swept through post-war America, sparking renewed fascination with the marvelous and the strange—psychic powers, supernatural and alien encounters, and fringe occult beliefs. This talk will examine the intersection of science fiction fandom and mid-century bohemian culture with the paranormal, including a discussion of outsider artist and alien contactee Richard Shaver.NOTE: This talk will introduce the new class "Weird Tales and True Mysteries: The Legacy of Fate Magazine", Beginning October 14; more here
About the Speaker:
- J.W. Dotson MD is a psychiatrist and an independent scholar fascinated by cultural and anthropological olfaction studies, ethnobotany and medical astrology. James has presented esoteric fragrance lectures as part of "The Scent and Society" series at the Institute for Art and Olfaction and the "Experimental Scent Summit" (2020 & 2025) and is a recurring speaker for The Salem Witchcraft and Folklore Festival and Morbid Anatomy. He currently serves on the Advisory Board of the Archive of Healing.
About the Event Host:
This event is hosted by the Morbid Anatomy Blog & Library, a website dedicated to interstices of art and medicine, death and culture. Morbid Anatomy was created in 2007 as a blog by Joanna Ebenstein, a multi-disciplinary artist, curator, writer, lecturer and graphic designer. It later expanded to include a library of lectures, exhibitions, classes, spectacles, symposia, field trips, books, parties, and films. It is best known for its brief incarnation as the critically acclaimed Morbid Anatomy Museum (2013-2016) in Brooklyn, New York.........................................................................................................................................................................................................
- SITP Online: "The Myth Factory"Link visible for attendees
Event Title: "The Myth Factory: Legends, Invented Heroes and Fake Histories as Selling Points for Tourism" with András Pintér
How to Watch:
Join us at the Skeptics in the Pub channel on Twitch:
https://m.twitch.tv/sitp/New to Skeptics in the Pub or Twitch or both?
Twitch or SitP may be new for some of you, so SITP will have early doors at 1:45 to welcome new attendees and answer any questions you may have before the presentation begins at 2:00. You can find a useful guide to Twitch here: https://www.lifewire.com/what-is-twitch-4143337You don't need a Twitch account to watch the talk only if you want to take part in the chat. You won't need an account to ask questions in the Q&A period though.
Note: If you have questions, please refer to the SITP Online event page - but note the event time is listed for BST, i.e. British Summer Time, which is 5 hours ahead of EDT:
https://sitp.online/show/the-myth-factory-legends-invented-heroes-and-fake-histories-as-selling-points-in-tourism-andras-pinter/Event Description:
Tourism is one of the world’s biggest industries, built on the promise of wonder. We travel to stand where legends were born, to see relics said to hold miraculous power, or to follow in the footsteps of heroes we’ve only read about. But how much of what we’re sold is real — and how much is pure fabrication?From glossy guidebooks to “documentaries,” from local storytellers to global marketing campaigns, tales are told that blur the line between history and fantasy and as such, tend to collapse under scrutiny. Sometimes there’s a grain of truth, but more often the stories have been bent, exaggerated, or entirely fabricated. In some cases, the people or events never existed at all.
And what happens when a skeptic becomes a tour guide? When you’re tasked with educating curious travellers, it’s hard to play along with myths about monsters, miracle-working bones, or people who never walked the Earth. This talk takes you on a skeptical journey through some of the world’s tourist traps—from the obvious suspects like imaginary monsters to the stranger cases where folklore breathed life into characters that never lived, but somehow became “real.”
About the Speaker:
- András G. Pintér has been a skeptic far longer than he has been a tour guide — but in both roles, he’s been surrounded by myths. With a background in Music, Biology, and Environmental Science, he has been dedicated to promote science, evidence-based policies, and critical thinking since his late teens. For the past 17 years, András has worked as an international tour director and guide — having to cope in an industry where legends, half-truths, and outright fabrications are part of the daily routine. Instead of simply playing along, he’s made it part of his mission to expose the stories that don’t quite add up. A founding member and current chair of the Hungarian Skeptic Society, András is also the initiator and a co-host of The European Skeptics Podcast (The ESP) and serves on the board of the European Council of Skeptical Organisations. Whether on stage, on air, or on the road, he tries to bring a sharp critical eye to the tales that shape how we see the world.
About the Event Host:
"Skeptics in the Pub Online" is a FREE online event series organized by a UK-based coalition of skeptic groups. Formed when Covid-19 lockdowns stopped them meeting in pubs, they are working to deliver high-quality events based on science, reason, and critical thinking. To find out more about their online events, go to: https://www.skepticsinthepub.org/online-safety/...............................................................................................................................................................................................................................................................................................................................................................................................................................
- Free Library Event: Steven Pinker, "When Everyone Knows That Everyone Knows..."Parkway Central Library, Philadelphia, PA
Event Title: Steven Pinker, When Everyone Knows That Everyone Knows...
Date & Time: Thurs., Sept, 25, 2023; 7:00 p.m. - 8:30 p.m. EDT
Cost: $5.00 - you can purchase tickets here:
https://10991a.blackbaudhosting.com/10991a/tickets?tab=2&txobjid=cd47e1c0-729e-438e-8d7f-f76ac4efc797Books will be available for purchase at the library on event night.
This program is open to the public and will meet in the auditorium of Parkway Central Library. Please use Wood Street entrance/exit.
About the Book:
Common knowledge is necessary for coordination, for making arbitrary but complementary choices like driving on the right, using paper currency, and coalescing behind a political leader or movement. It’s also necessary for social coordination: everything from rendezvousing at a time and place to speaking the same language to forming enduring relationships of friendship, romance, or authority. Humans have a sixth sense for common knowledge, and we create it with signals like laughter, tears, blushing, eye contact, and blunt speech.But people also go to great lengths to avoid common knowledge—to ensure that even if everyone knows something, they can’t know that everyone else knows they know it. And so we get rituals like benign hypocrisy, veiled bribes and threats, sexual innuendo, and pretending not to see the elephant in the room.
Pinker shows how the hidden logic of common knowledge can make sense of many of life’s enigmas: financial bubbles and crashes, revolutions that come out of nowhere, the posturing and pretense of diplomacy, the eruption of social media shaming mobs and academic cancel culture, the awkwardness of a first date. Artists and humorists have long mined the intrigues of common knowledge, and Pinker liberally uses their novels, jokes, cartoons, films, and sitcom dialogues to illuminate social life’s tragedies and comedies.
Consistently riveting in explaining the paradoxes of human behavior, When Everyone Knows That Everyone Knows… invites us to understand the ways we try to get into each other’s heads and the harmonies, hypocrisies, and outrages that result.
About the Author & Host:
Steven Pinker is the Johnstone Professor of Psychology at Harvard University. He has won many prizes for his teaching, his research on language, cognition, and social relations, and his twelve books, including The Language Instinct (1994), How the Mind Works (1997), The Blank Slate (2002), The Stuff of Thought (2005), The Better Angels of Our Nature (2011), Enlightenment Now (2018), and Rationality (2021). He is an elected member of the National Academy of Sciences, a two-time Pulitzer Prize finalist, and one of Time’s “100 Most Influential People in the World Today.”The author will be in conversation with Annie Duke is an author, speaker, and consultant in the decision-making space, as well as Special Partner focused on Decision Science at First Round Capital Partners, a seed stage venture fund. Annie’s latest book, Quit: The Power of Knowing When to Walk Away, was released in 2022 from Portfolio, a Penguin Random House imprint. Her previous book, Thinking in Bets, is a national bestseller. As a former professional poker player, she has won more than $4 million in tournament poker. Prior to becoming a professional poker player, Annie was awarded a National Science Foundation Fellowship to study Cognitive Psychology at the University of Pennsylvania, where she earned her master’s degree. In 2021 she returned to her alma mater as a Visiting Scholar, where she also teaches executive education. In 2023 Annie completed her PhD in Cognitive Psychology.
About the Free Library Author Events:
The Author Events program at the Free Library of Philadelphia offers the opportunity to engage in meaningful dialogue with today’s most celebrated voices in the humanities and sciences.- For more information, call the Author Events Office at 215-567-4341 or email authorevents@freelibrary.org or go to https://libwww.freelibrary.org/programs/authorevents/?id=135702