Observed arrival · 2026-10-23
The Math Behind Everything’s playable probability questions
A math video project pairs short-form videos with games that let visitors explore the numbers behind memorable questions.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- People curious about probability and everyday math
- Worth noticing
- The rock-paper-scissors game describes a single-elimination field of 8,320,000,000 players and asks visitors to win 33 matches in a row.
Field notes
The birthday game adds people to a room one at a time and poses the question of when two people will share a birthday. The second game sets a single-elimination rock-paper-scissors tournament at 8,320,000,000 players and asks for 33 consecutive wins. The homepage links the games to videos on TikTok, Instagram, and YouTube; it says another game arrives with the next video.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
◎NicheUnusually specific use
◉HumanPersonal, local, civic, or handmade
One card from the complete issue