r/explainlikeimfive is a subreddit with 23.6M members. The community frequently discusses eli5, hard time, water, football, and data centers, and they frequently recommend/review cleaning products, antiperspirant, and birth control options, and the most common flair used is other, biology, technology, economics, and engineering.
Explain Like I'm Five is the best forum and archive on the internet for layperson-friendly explanations.
Don't Panic!
Popular Topics in r/explainlikeimfive
#1
Eli5
41 posts
#2
Hard Time
6 posts
#3
Water
4 posts
#4
Football
3 posts
#5
Data Centers
3 posts
#6
Relationships
2 posts
#7
Computers
2 posts
#8
Job_search
2 posts
#9
Animals
2 posts
#10
Technology
2 posts
Products Discussed in r/explainlikeimfive
Cleaning Products
7 reviews
#1
Gain
2.0★ from 1 review
#2
7th Generation
4.0★ from 1 review
#3
Tide
4.0★ from 1 review
Antiperspirant
5 reviews
#1
Aluminum Free
3.0★ from 2 reviews
#2
Aluminum-free Deodorant
3.0★ from 1 review
#3
Aluminum-based Deodorant
2.0★ from 1 review
Birth Control Options
2 reviews
#1
Condoms
4.0★ from 1 review
#2
Vasalgel
4.0★ from 1 review
Flair Used in r/explainlikeimfive
#1
Other
: "ELI5: before accurate clocks existed, how did two people in different towns agree to meet at “at 3 o’clock”?"
42 posts
#2
Biology
: "ELI5: Why is it typical for kids to be "picky eaters" and limit their vegetable and fruit intake during the most crucial years of growth?"
40 posts
#3
Technology
: "ELI5: What is so valuable about personal data?"
26 posts
#4
Economics
: "ELI5: What exactly is an insurance tower, and how does it work?"
17 posts
#5
Engineering
: "[ELI5] why don’t we use desert sand in construction?"
12 posts
#6
Physics
: "ELI5 why cant we use summer heat to generate energy and stock it to use it in winter"
12 posts
#7
Mathematics
: "ELI5 - What is The Honeycomb Conjecture"
6 posts
#8
Chemistry
: "ELI5: Why do bars of soap leave a “squeaky clean” feeling on our skin but body wash doesn’t?"
5 posts
#9
Planetary Science
: "ELI5 How does it make any sense whatsoever that distant stars are ACCELERATING away from us? What is pushing them?"
5 posts
Member Growth in r/explainlikeimfive
Yearly
+367k members(1.6%)
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About
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Last updated: August 8, 2026