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Cuba, in the dark

27 things are true about Cuba that most people who live there could not tell you. Here they are, with the year each was measured and who measured it. Some of them will not be what you expected.

What is measured here

Electricity access — 100%

Share of people with access to electricity at home. Lower than 52% of countries. Measured 2024.

Internet use — 70.5%

Share of people who have used the internet in the last three months. Lower than 61% of countries. Measured 2024.

Urban population — 77.2%

Share of people living in areas classed as urban. Higher than 72% of countries. Measured 2025.

Children per woman — 1.45

Births per woman over a lifetime, at current rates. Lower than 77% of countries. Measured 2024.

Life expectancy — 78.3 yrs

How long a person born now would live at current mortality rates. Higher than 73% of countries. Measured 2024.

Safe sanitation — 45.9%

Share of people with a toilet whose waste is safely treated. Lower than 63% of countries. Measured 2024.

Forest cover — 31.2%

Land under trees taller than five metres, as a share of all land area. Lower than 51% of countries. Measured 2023.

CO₂ per person — 1.9 t

Carbon dioxide from fuel and industry, divided by population. Land use and forests are not counted. Lower than 56% of countries. Measured 2024.

Aged 65 and over — 17%

Share of the whole population aged 65 and above. Higher than 76% of countries. Measured 2025.

Aged under 15 — 15%

Share of the whole population aged 0 to 14. Lower than 85% of countries. Measured 2025.

Women in parliament — 55.7%

Seats held by women in the lower or single chamber of the national parliament. Higher than 99% of countries. Measured 2025.

Mobile subscriptions — 73 per 100

Active mobile phone subscriptions per 100 people. Over 100 means more lines than people. Lower than 82% of countries. Measured 2024.

Renewable energy — 20.9%

Renewable sources as a share of all final energy used, including heating and transport, not just electricity. Lower than 54% of countries. Measured 2021.

People per km² — 106

Population divided by land area. A square kilometre is about 140 football pitches. Higher than 58% of countries. Measured 2023.

Health spending per person — 1199 US$

All health spending, public and private, divided by population, in US dollars. Higher than 70% of countries. Measured 2020.

Born abroad — 0%

People born in another country, as a share of everyone living here. Lower than 100% of countries. Measured 2024.

Infant mortality — 6.8 per 1,000

Deaths before age one per 1,000 live births. Lower than 71% of countries. Measured 2024.

University enrolment — 43.1%

People enrolled in university or college, as a share of the five-year age group just out of school. It can go over 100%. Lower than 55% of countries. Measured 2024.

Protected land and sea — 6.9%

Nationally designated protected areas, land and sea together, as a share of total territory. Lower than 65% of countries. Measured 2025.

Air pollution (PM2.5) — 9.4 µg/m³

Average yearly exposure to PM2.5, particles small enough to reach the lungs. The WHO guideline is 5. Lower than 82% of countries. Measured 2023.

Doctors per 1,000 — 9.54

Medical doctors, general and specialist, per 1,000 people. Higher than 99% of countries. Measured 2021.

Home broadband — 3.1 per 100

Fixed broadband subscriptions per 100 people. One line usually serves a whole household. Lower than 69% of countries. Measured 2024.

Women in work — 40%

Women aged 15 and over in the labour force, as a share of all women that age. Lower than 81% of countries. Measured 2025.

Tourist arrivals — 1,086,000

Overnight visitors arriving from abroad in one year. One person visiting twice counts twice. Higher than 52% of countries. Measured 2020.

Population growth — -0.39% a year

Yearly change in population, from births, deaths and migration together. Lower than 91% of countries. Measured 2025.

Adults who smoke — 16.1%

Adults aged 15 and over who currently use any tobacco product. Lower than 59% of countries. Measured 2024.

Spent on research — 0.44% of GDP

Spending on research and development, public and private, as a share of GDP. Lower than 51% of countries. Measured 2024.

income per person, money sent home have never been measured here. Not zero — unmeasured, which is its own kind of dark.

The world's attention, 2026-09-24

The world wrote about Cuba more than 79% of countries in the last day, and what it wrote was darker than average (tone -3.20). Aggregate counts only — no headlines, no links, no text from the feed.

Where the dark hides things

The game scatters its findings across real towns. In Cuba those are Havana, Santiago de Cuba, Camagüey, Holguín, Guantánamo, Santa Clara, Las Tunas, Bayamo, Pinar del Rio, Cienfuegos, Matanzas, Ciego de Ávila, Manzanillo, Sancti Spíritus, Palma Soriano, Güines, Artemisa, Morón, Colón, Sagua la Grande.

Walk it

Uncertainity is a short, experimental browser game — free, no sign-up, a few minutes. It gives you the country you are actually in, as a dark map of its real coastline, and nothing exists until you have been near it. Each day six of the numbers above are hidden in its towns — a different six tomorrow — and a seventh comes from how the world's attention fell on the place today.

New episodes arrive from time to time rather than on a schedule: geography, current affairs, whatever turns out to be worth walking through. Subscribe and you get one email when one lands, and nothing else.

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