SortStack #208 — 2027-01-03

By population · Order from fewest to most people.

1. Seats in the Sydney Opera House's main concert hall 2.7K

   The building's sails were so hard to engineer that the design pre-dated computers able to verify it.

2. San Francisco — the city proper 810K

   Smaller in population than Indianapolis, despite its outsized cultural footprint.

3. The population of Germany 84M

   The EU's most populous country — yet its capital is only its third-densest city.

4. The population of Vietnam 100M

   Roughly 40 percent of all Vietnamese share the surname Nguyen.

5. People with an Instagram account 2B

   If it were a country, it would be the largest on Earth — by a wide margin.

6. Christians worldwide 2.4B

   The world's largest religion — nearly a third of humanity across every continent.

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