SortStack #61 — 2026-08-09

By population · Order from fewest to most people.

1. Sumo wrestlers in Japan's top makuuchi division 42

   Exactly forty-two slots exist; wrestlers are promoted or demoted after every single tournament.

2. People who have ever stood on the summit of Mount Everest 6.9K

   Kami Rita Sherpa has been up more than 30 times — roughly one in every 230 summits is his.

3. Greater Shanghai 29M

   Its metro system, opened only in 1993, is already the longest in the world.

4. The population of Canada 40M

   The world's second-largest country by area has fewer people than Greater Tokyo.

5. The population of Indonesia 277M

   The world's largest archipelago nation and largest Muslim-majority population.

6. Left-handed people worldwide 800M

   About one in ten humans — a share that has stayed stable for at least 10,000 years of art.

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