A social media comment thread where a user insults someone’s grammar by saying “your parents failed you,” followed by a reply that ironically uses the incorrect “you’re” while trying to make a grammatical correction.
via Canva

I can’t believe how overconfident people can get. It’s wild the lengths to which one’s delusions will carry them on their self-created roads towards knowing everything. I love how I get wordy just trying to put a finger on why egos swell like they do. Oftentimes in the company of the people who insist on providing everyone else unsolicited advice. There’s a special kind of funny when someone is confidently incorrect. The tone is certain, the delivery is bold, and the facts are not even close. You can almost hear the mic drop right before the correction lands. This gallery celebrates those moments. No malice, just maximal confidence meeting minimal accuracy. It’s the internet’s favorite combo of bravado and facepalm.

1. Grammar drama

A screenshot of a social media comment thread where users exchange playful insults and correct each other’s grammar, including a debate over “your” vs. “you’re.” Usernames and profile pictures are scribbled out for privacy.
CON FIDENTLYI NCORRECT / VIA REDDIT.COM

2. “Everyone in the world uses Fahrenheit”

A screenshot shows a thermometer reading 120°C with overlaid text. Below, a social media comment section debates Celsius versus Fahrenheit use, with several users responding humorously or critically to each other.
CONFI DENTLYINCORRECT / VIA REDDIT.COM

3. So, sharks are not fish?

A screenshot of a social media comment thread about whether sharks are fish or mammals. The top comment claims the whale shark is the biggest fish. Replies debate if sharks are fish or mammals, with some misinformation.
CONFIDENT LYINCORRECT / VIA REDDIT.COM

4. Your parents failed you

A Facebook post says, "If your children attend a public school. You fail as a parent." A comment replies, "Looking at your grammar, your parents failed you," with a correction below: "thats 'you're' parents failed you." People react with laughter emojis.
CONFIDEN TLYINCORR ECT / VIA REDDIT.COM

5. Is the year 7.500.000.000

A social media comment thread debates Earth's age; one user claims Earth is only 2025 years old, another replies it’s 7.5 billion years, and a third questions why the year is 2025, not 7,500,000,000.
CON FIDENTLYINCO RRECT / VIA REDDIT.COM

6. A masterclass on DNA right here

A social media comment explains DNA inheritance, noting girls get their mother's and father's mother's DNA but not their father's father's. It also discusses the difficulty in proving a girl's paternity using the X chromosome.
CONFIDENTLYI NCORRECT / VIA REDDIT.COM

7. Oh, the problem with kids nowadays…

A social media post highlights a chart from a book showing "Time Spent with Children" dropping from over 2 hours per day to less than 1 hour as children age, sparking concerns about modern parenting.
CON FIDENTLYINCO RRECT / VIA REDDIT.COM

8. I guess London is America now

A screenshot of a Facebook comment thread where users debate whether an animal in London was a fox or a coyote, with humorous confusion about coyotes living in Europe and London being in America.
C ONFIDENTLYINCOR RECT / VIA REDDIT.COM

9. So much confusion

A screenshot of a social media conversation debating if Puerto Ricans are American. One user argues they are since Puerto Rico is in America, another counters by comparing it to Hawaii, and a third clarifies Hawaii is a state while Puerto Rico is a territory.
CON FIDENTLYI NCORRECT / VIA REDDIT.COM

10. I don’t think so

A YouTube comment says, "Its a GERMAN one, not an austrian" with 3.4K likes. A reply below says, "Austrian IS in Germany" with a rose emoji and 104 likes.
CON FIDENTLYI NCORRECT / VIA REDDIT.COM

11. Bro!

A social media post reads: "The pope is catholic, that’s nowhere near Christian." Below, a reply simply says, "Bro." Usernames and profile photos are redacted with red markings.
CON FIDENTLYI NCORRECT / VIA REDDIT.COM

12. Food poisoning requires hospitalization

A social media exchange where one user describes having food poisoning after eating shrimp and another user responds, disputing the diagnosis and calling the first user ignorant for blaming cold food.
CON FIDENTLYI NCORRECT / VIA REDDIT.COM

13. Learn grammar

A Reddit comment thread where one user says, "Your kind, apparently." Another user corrects them, replying, "You're.... Learn grammar." The comment receives mixed upvotes and downvotes.
CON FIDENTLYI NCORRECT / VIA REDDIT.COM

14. You have to learn your Roman numbers

A YouTube Shorts screenshot shows a painting of Henri IV of France playing with his children. The top comment wrongly calls him Henry VIII, and a reply corrects the mistake, clarifying it is Henry IV, not Henry VIII.
CON FIDENTLYI NCORRECT / VIA REDDIT.COM

15. We’re all “dieing” here

A Reddit comment thread where one user mistakenly writes "dyeing" instead of "dying," and another user humorously explains the difference between "dye," "die," and "dieing," stressing the importance of correct word usage.
CON FIDENTLYI NCORRECT / VIA REDDIT.COM

Explore more humorous content:

If you loved this flavor of gentle chaos, keep the scroll going with these 23 Clueless People Who Think They’re Actually Smart, or these 18 People Who Tried To Be Cool Online and Failed Miserably. You can also check these 17 DIY Attempts That Resulted in Historic Fails.

Meet the Writer

Matt has spent over the last 8 years as both a writer and editor, working in Seattle and Brooklyn, where he is now based. He loves escaping the tirelessly fast pace of the “Mad Apple” that is NYC by taking walks and runs through parks where he’s able to catch up on the latest tea about society from the city’s ever chatty, always hungry, occasionally maniacal, pigeons. They always have a lot to say. When he’s not taking his urban nature strolls, or dutifully combing the deepest rabbit holes of the internet to find the content that’s worth sinking your mind’s teeth into, he’s likely holed up at a dark-lit dive bar with a new book and/or some friends, or just as easily he could be on the hunt for the next addition to his steadily growing plant family.

These days Matt’s caught up in trying to provide folks as many vivid glimpses into the days long since passed as he can, through fun and engaging collections of hand-picked vintage photos.