Italy Built 1.8 Million Fake City Residents for Research — Safely
Study real cities without exposing anyone's private data — huge for planning.
Imagine a city's entire population — its ages, family sizes, health habits, jobs — recreated as a digital twin, but with every real person swapped for a statistically identical stand-in. That's what Animarium does for 11 Italian cities, making 1.8 million synthetic residents. The goal is simple: give researchers and city planners realistic data to work with, without touching a single real name or address.
Why does this matter? Today, if a government wants to test what happens during a heatwave, a pandemic, or a housing shortage, they need detailed population data. That usually means using real people's records, raising privacy red flags. Animarium's fake residents are built only from published census tables and open government data. Every home, age, and health trait is reconstructed mathematically — not copied from any actual person. The result is data you can study freely, share publicly, and use to run simulations.
The catch: these aren't real people, and the researchers admit they haven't validated how accurately the synthetic population matches reality. It's a promising starting point, not a perfect crystal ball. But the system is transparent — anyone can regenerate the entire dataset from source code in about half an hour, and each fake resident's every detail is traceable to a public statistic. That's a huge step toward data-driven policy that respects citizens' privacy.
- Synthetic populations let researchers study cities without using real people's private data.
- Over 1.8 million realistic fake residents were generated for 11 Italian cities from official statistics alone.
- The dataset is fully open and reproducible in 33 minutes on a normal workstation.
Why It Matters
Safer, cheaper city planning and research — no privacy leaks, just public data used smartly.