r/skeptic • • Feb 06 '22

🤘 Meta Welcome to r/skeptic here is a brief introduction to scientific skepticism

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skepticalinquirer.org
294 Upvotes

r/skeptic • • 13h ago

A quick refresher on thermodynamics: Why high-altitude aircraft trails are physics, not chemistry.

106 Upvotes

Ugh. ​It is baffling that in an age of accessible information, the "chemtrail" conspiracy theory still persists. Anyone who has ever stepped outside on a freezing winter morning and watched their own breath condense into a visible cloud has already witnessed the exact same physics that occur at 35,000 feet.

​Here is what is actually happening:

​The Chemistry of Combustion: Commercial jet engines burn hydrocarbon fuel (kerosene). The chemical reaction of burning hydrocarbons combines fuel with oxygen, producing carbon dioxide, thermal energy, and water vapor as primary exhaust byproducts.

​The Environment at Altitude: At cruising altitude (typically 30,000 to 40,000 feet), ambient air temperatures are brutally cold often around -40°C or lower.

​Condensation and Freezing: When hot, moisture-laden engine exhaust hits that freezing, low-pressure external air, the water vapor instantly condenses and freezes into microscopic ice crystals. This creates a contrail (short for condensation trail), which is functionally identical to the cloud of vapor you see when you exhale on a cold day.

​Why Do Some Contrails Linger? People often point to trails that spread out and persist as "proof" of chemical spraying. In reality, this depends entirely on the atmospheric humidity and wind shear at that specific altitude. If the upper atmosphere is already humid, the ice crystals can not evaporate quickly, causing them to spread out and form cirrus-like clouds. If the air is dry, they dissipate rapidly.

​It all comes down to basic eighth-grade physics and meteorology—no secret spraying required. Maybe it's time to brush up on thermodynamics before inventing a global conspiracy. I'm so tired of people saying commercial passenger jets are spraying chemicals into the air. Ugh.


r/skeptic • • 18h ago

Anyone skeptical if Republicans will use AI in political ads?

31 Upvotes

PA Governor Race: incumbent Shapiro (D) vs Garrity (R)

Just got a view of Garrity’s new AI generated attack ad completely AI generated with full motion video and synchronized synthetic audio of Shapiro admitting to completely false actions and positions.

The ad has NO disclaimer or even attribution to the Garrity campaign until the very end.

No doubt some Dems will also do this but it takes a Republican to do the most heinous and deceitful version.

Be skeptical of all political advertising.


r/skeptic • • 1d ago

💩 Misinformation It Looked Like a New Species. The Trouble Was, It Didn’t Exist: Facing a flood of A.I. slop, groups bent on democratizing science create new checks and balances.

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nytimes.com
64 Upvotes

r/skeptic • • 2h ago

Looking for honest experiences with QUEX ED and L.I.F.E. System

0 Upvotes

I’m researching QUEX ED and L.I.F.E. System quantum biofeedback machines and would love to hear from anyone who has experience with either one, whether as a client or practitioner.

If you’ve received sessions, did you notice any improvements?
How long did the effects last?
Did you return for more sessions?
Were there any negative experiences?

I’d also appreciate feedback from current or former practitioners about reliability, effectiveness, technical support, and the pros and cons of each system.

I’m interested in honest experiences, both positive and negative, as well as any independent research or technical information anyone can share.


r/skeptic • • 1d ago

The Gorbals vampire: the monster with iron teeth, and the evidence with none | Ankana Das

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skeptic.org.uk
20 Upvotes

In 1954 a Glasgow cemetery filled with children hunting a vampire. Within a week the whole country knew what had made them do it, and nobody had checked.


r/skeptic • • 1d ago

💉 Vaccines Ken Paxton stirs vaccine skepticism to ingratiate himself with Maha movement | Texas

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theguardian.com
356 Upvotes

r/skeptic • • 1d ago

Conservative plans on citizenship and ‘impartiality’ raise concerns for fact-based education

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humanists.uk
105 Upvotes

Naming climate change as a ‘contentious issue’ risks treating settled science as a matter of political opinion. Humanists UK previously led a successful campaign to stop state schools in England presenting ‘intelligent design’ as a scientific alternative to evolution. Ofsted inspecting individual lessons for ‘bias’ could make teachers reluctant to teach anything a parent might object to, including LGBT+ issues. Section 28 was rarely if ever enforced, but for 15 years teachers avoided the subject altogether: the threat of inspection and referral is enough to do damage.


r/skeptic • • 1d ago

escaped the conspirituality rabbit hole. used magical thinking as an emotional shield against grief and reality—how do skeptics actually build meaning without the cope?

37 Upvotes

hey, long time lurker. wanted to share a raw reflection and ask how you guys handle the aftermath of dismantling your own cognitive distortions.

for years i was neck-deep in the conspirituality space, esoteric stuff, synchronicities, new age bullshit. looking back objectively, it wasnt that i genuinely found bulletproof evidence for any of it. it was pure motivated reasoning and emotional self-defense. i was grieving lost family, terrified of non-existence, and overwhelmed by the boring, heavy demands of ordinary adult life. magical thinking was just a very seductive bunker to avoid facing an indifferent universe and my own lack of agency.

eventually the contradictions broke the dam. i spent months picking apart my own cognitive biases, fallacies, and rationalizations (ironically bouncing logic back and forth with an llm helped me see where my reasoning was completely circular). ended up landing hard in philosophical materialism and absurdism. no cosmic scripts, no higher vibrations, no grand narrative.

heres my struggle now: the intellectual deprogramming was the easy part. the hard part is the void that comes after.

when you strip away the magical theater, reality is just... reality. stubborn, completely indifferent, quiet. for those of you who have been rational skeptics for a long time or broke out of high-control irrational belief systems: how do you build a grounded, active life without slipping into cynical paralysis? how do you satisfy the human need for depth, connection, and drive while staying strictly tethered to empirical reality and knowing nothing owes you a damn thing?

appreciate any straight answers.


r/skeptic • • 2d ago

💩 Misinformation The Russian Bots Went Silent. Or Did They? --Renée DiResta

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209 Upvotes

There is a real event underpinning the story, and an authentic chart showing a dramatic decline in automated internet traffic. But the leap from a viral chart to the disappearance of Russian propaganda bots is a large one. Much of the apparent corroboration comes from anecdotes about how social media feels, rather than measurements of what actually changed. And this speaks to a broader problem...

Broken down into 8 bite size segments by a leading disinformation researcher

  1. What happened, and why does everyone think the Russian bots disappeared?
  2. Wait, what exactly is a "bot"?
  3. So what does the Cloudflare chart actually show?
  4. But couldn't the strikes also have disrupted Russian propaganda operations?
  5. Why did so many people believe the claims?
  6. Couldn’t disinformation researchers just check whether accounts stopped posting?
  7. What does this all tell us about the state of the information environment?
  8. Why is it so hard to answer these questions now?

So, ironically, a story about the disappearance of Russian propaganda bots became a viral misleading story on its own. 


r/skeptic • • 1d ago

Full moon makes the ER busier? Caught myself half believing it

18 Upvotes

At dinner last weekend my uncle said full moons make the ER crazy. I asked how he'd know and he said "every nurse says so." Thing is, I've repeated that exact line before without thinking about it.

When I looked it up later, the studies I found mostly show no real effect on ER visits or admissions. It looks like classic confirmation bias. A wild night under a full moon becomes a story people tell for years. A quiet full moon shift just gets forgotten, and nobody remembers a busy night that happened under a half moon.

What bugs me is that "every nurse says so" feels like evidence because it's lots of people, but it's lots of people sharing the same memory filter.

Oddly, my cousin had some "orbivanius" numerology thing open on her phone at the table, and it happened to say something about seeing patterns that aren't there. Vague enough to fit anyone, but it made me laugh.

Anyone have a good source on why this belief sticks so hard in hospitals?


r/skeptic • • 2d ago

💲 Consumer Protection The skincare scheme that led to consumer complaints, lawsuits and a federal investigation

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npr.org
25 Upvotes

r/skeptic • • 2d ago

🤦‍♂️ Denialism New Documents Add to Evidence in Climate Deception Case Against ExxonMobil

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insideclimatenews.org
264 Upvotes

r/skeptic • • 2d ago

❓ Help I WOULD LIKE TO GET SOME HELP OR ADVICE

7 Upvotes

Hello. I am just deconstructing from Christianity and learning more about psychology and how our mind works has really had me questioning the existance of a deity or of God. However my deconstruction has not been easy and one of my biggest areas of difficulty has been miracles especially the untested and witness claimed ones. I understand perfectly that not all eyewitness accounts point towards truth and between being honestly mistaken to embellishment and even to fraud I often have little trust of the same. But there is a particular claim that especially feels sticky to me and I would like your help in evaluating the same.

https://www.standardmedia.co.ke/amp/article/2000125937/kenyan-nun-who-photographed-god-is-headed-for-sainthood

https://sisterannaali.org/page.php?id=MDAwNEZCa053WjNBM3A

These are the links to the story. For the most part I am more comfortable with the claims of crying blood and the images and I know the evidence needed to affirm the same though I would like to hear your views on the same. For me I believe the part where I am bit hung up is on the issue of the cameras being damaged. I know that a claim and a witness story is not enough and there is a need to establish more like what damage was caused and what is the actual cause of damage etc.

But I often feel like my arguments are weak and not emotionally compelling. It definitely hasn't been helpful that the only medium I have consulted this far has been AI.

I guess what I am asking for specifically is what are your views and opinions on the same especially with the evidence claimed to be provided and am I being overly skeptical by choosing to be uncertain over the same information or for not accepting testimony face value .


r/skeptic • • 2d ago

💲 Consumer Protection Justin Baldoni‘s Crisis PR Firm Linked to Smear of Consumer Safety Advocate

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200 Upvotes

r/skeptic • • 3d ago

Fact File: HPV vaccine safe and effective despite RFK Jr. claims, experts say

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ctvnews.ca
711 Upvotes

r/skeptic • • 3d ago

The Tiffany Problem: the modern things that are counterintuitively much older than we assume | Sea Slater

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56 Upvotes

It's natural to map the world around us with heuristics, but sometimes they can lead us astray or even reveal our biases and bigotries.


r/skeptic • • 3d ago

Natural doesn't always mean better: How to spot if someone is trying to convince you with an 'appeal to nature'

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bbc.com
128 Upvotes

This shouldn’t be news to any skeptic, but it is well-written and it is good to see stuff like this published on BBC.


r/skeptic • • 3d ago

Ancient Egyptian Skepticism, GM 261, 2020

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10 Upvotes
  1. Skepticism existed in ancient Egypt, contrary to the belief in absolute religious devotion.

  2. Religious practices often reflected personal piety rather than adherence to official cults, indicating skepticism.

  3. Tomb robbing from the Badarian period suggests a significant skepticism regarding afterlife beliefs.

  4. Literary texts demonstrate skepticism towards the efficacy of divine intervention and afterlife promises.

  5. Ancient skepticism diverged from modern ideas, focusing more on suspending belief than on questioning knowledge.


r/skeptic • • 3d ago

💩 Woo People Say These Peptides Hurt Them. Their Stories Are Muffled in MAHA’s Push for Medical Freedom.

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156 Upvotes

r/skeptic • • 4d ago

⚖ Ideological Bias The Yandex outage probably didn’t blitz Russian bots; At least, not the troll traffic that blights social media.

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theverge.com
331 Upvotes

Lots of people are meming about troll bots going down but the data doesn't support that.

Besides the lack of data, simple skepticism and knowledge about how networks and traffic analysis work should make it obvious the calls are coming from inside the house.

Domestic traffic is less likely to be intercepted or straight up banned.


r/skeptic • • 4d ago

MAGA’s Talarico Mental Breakdown Conspiracy Implodes—Instantly

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888 Upvotes

r/skeptic • • 5d ago

🚑 Medicine Anti-vaxxers target Texas measles doctors to cast doubt on deaths amid outbreak

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theguardian.com
365 Upvotes

r/skeptic • • 4d ago

It was Big Tabacco this whole damn time!

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businessinsider.com
135 Upvotes

Ai was invented to cure cancer... To bring back smoking.


r/skeptic • • 4d ago

Anyone else getting ads for u/informedwaterchoices?

63 Upvotes

The single most disgusting piece of deliberate disinformation I have seen here on Reddit. They equate vinyl chloride (an odorless, colorless, deadly gas) with polyvinyl chloride, a common type of drinking water pipe. Kind of like equating pure sodium with salt. And they don't allow comments on their posts or on their user page. I presume that they're trying to sell some other kind of drinking water pipe that's much harder to use and/or much more expensive.