# Dunning Kruger Effect
The Dunning-Kruger Effect is a cognitive bias meme where confidence-versus-competence graphs mock people who overestimate their expertise in a subject. Based on a 1999 Cornell study, it became a widespread reaction image throughout the 2010s, often deployed to call out overconfident posters on Twitter, Reddit, and Facebook.
## Overview
The Dunning-Kruger Effect meme takes a cognitive bias from academic psychology and turns it into a visual shorthand for calling someone confidently wrong on the internet[2]. The image most people recognize is a curve plotting confidence on the y-axis against knowledge or competence on the x-axis, with a tall spike near the start labeled 'Mt. Stupid' or 'Peak of Mount Stupid,' a deep dip called 'Valley of Despair,' and a slow rise toward the 'Slope of Enlightenment'[1].
The gag works because the graph looks scientific enough to feel like proof, so posters drop it as a wordless reply when someone in a comment thread confidently botches basic facts[5]. The underlying bias describes people with limited knowledge in a field who cannot spot their own errors, because the same skills needed to be right in that field are the ones needed to notice they've gone wrong[2].
## How It Spread
The graphed meme version took off after Joseph Paris posted 'Lessons from Mt. Stupid' on his consulting blog on September 11, 2014, splitting the effect into stages named 'Setting off on the Journey,' 'Climbing Mt. Stupid,' 'Reaching the Peak of Mt. Stupid,' 'Falling From the Peak,' 'Valley of Despair,' 'Slope of Enlightenment,' and 'Plateau of Sustainability'[1]. Paris paired the labels with a confidence-versus-wisdom curve, and screenshots of that graph got reposted across LinkedIn, Twitter, and Reddit as a ready-made insult template. Mainstream outlets including The Independent picked up a confidence-versus-competence version, and educational YouTube channels including After Skool in 2019 and Sprouts in 2021 released explainers that pushed the concept into wider circulation[3].
Around 2017, blogger BS King of Graph Paper Diaries argued the viral graphs did not match Dunning and Kruger's actual charts, writing that the study only showed subpar performers rating themselves as roughly average rather than ignorant people rating themselves as experts[4]. TikTok and Instagram Reels later reused Mt. Stupid stills as cutaway shots in videos about self-taught crypto traders and armchair epidemiologists[5]. The academic backlash grew as well, with McGill University science writer Jonathan Jarry publishing a December 2020 piece arguing the effect might be a statistical artifact of the study design rather than a real bias[2].
The template saw a wave of political use during the pandemic era. On October 22, 2021, a Facebook page called 'im not right in the head.com' posted a Mt. Stupid edit placing 'Facebook experts' at the peak and doctors past the Slope of Enlightenment, pulling over 2,500 shares and 6,800 reactions in three months, and follow-up edits calling the platform 'the Dunning-Kruger National Park' spread in late December of that year[3].
## How to Use
The typical format takes the Mt. Stupid curve and swaps the y-axis labels for a specific topic like crypto, epidemiology, film theory, or foreign policy[1]. Creators often mark a red arrow at the peak with a screenshot, name, or username of whoever they're mocking, and sometimes add a second arrow near the Slope of Enlightenment for the people they treat as actual experts[5]. Text-only versions are common too, where users just reply 'peak Dunning-Kruger' or 'that's Mt. Stupid speaking' under a confident bad take[6].
## Frequently Asked Questions
### What is Dunning Kruger Effect?
The Dunning-Kruger Effect is a cognitive bias where people with low ability in a field overestimate their skills, and it became a graphed reaction meme used to mock overconfident posters online[2].
### Where did Dunning Kruger Effect come from?
The effect comes from a 1999 Cornell University paper by Justin Kruger and David Dunning, and the meme version took off after Joseph Paris's 2014 'Lessons from Mt. Stupid' blog post[1].
### What does Dunning Kruger Effect mean?
It describes low-competence people rating themselves highly because they lack the metacognition to notice they're wrong, while top performers tend to underestimate where they rank[2].
### How do you use Dunning Kruger Effect?
Users post the Mt. Stupid curve with topic-specific labels and a red arrow at the peak pointing to whoever they want to mock, often paired with a reply like 'peak Dunning-Kruger'[1].
### Is Dunning Kruger Effect still popular?
The graph saw heavy use during the pandemic era as a way to call out anti-vaccine misinformation, with viral Facebook edits pulling thousands of shares in late 2021[3].
### Who was McArthur Wheeler?
McArthur Wheeler was a Pittsburgh man who robbed a bank in April 1995 with lemon juice on his face, thinking it would make him invisible to cameras, and his case inspired Kruger and Dunning's study[3].
### What is Mt. Stupid?
Mt. Stupid is the peak on Joseph Paris's 2014 Dunning-Kruger graph where confidence spikes far above actual wisdom, and it became the most reused label from the meme format[1].
### Is the Dunning Kruger Effect real?
The core finding is debated; critics including Graph Paper Diaries in 2017 argued the viral graphs misrepresent what Kruger and Dunning actually measured in their 1999 study[4].
### What platforms is the Dunning Kruger Effect meme used on?
The graph gets shared as a reaction image on Twitter, Reddit, and Facebook, and it also appears as a cutaway shot in TikTok, Instagram Reels, and YouTube explainer videos[5].
### Why did the meme spike during COVID?
Facebook pages used the Mt. Stupid graph to argue that anti-vaccine and anti-mask posters were confidently sharing bad medical information they had no training in, with one 2021 edit placing 'Facebook experts' at the peak[3].
## References
1. [https://josephparis.me/my-articles/lessons-from-mt-stupid/]()
2. [https://www.psychologytoday.com/us/basics/dunning-kruger-effect]()
3. [https://knowyourmeme.com/memes/dunning-kruger-effect]()
4. [https://graphpaperdiaries.com/2017/08/20/the-real-dunning-kruger-graph/]()
5. [https://www.capcut.com/explore/dunning-kruger-effect-meme]()
6. [https://www.urbandictionary.com/define.php?term=Dunning%20Kruger%20Effect]()
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