Monday, November 2, 2026 · Played it? Here's how rare each one really was.
Human cells only (not bacteria), in a 70 kg reference adult.
1 in 1.2 cells 84.0%
Red blood cells make up 84% of the roughly 30 trillion human cells in your body.
Fun fact: That's about 25 trillion red cells. The same study retired the '10 bacteria per human cell' myth: it's closer to 1 to 1.
Every ingredient used to make fragrances worldwide (IFRA transparency list, July 2025).
1 in 3.6 ingredients 27.6%
IFRA lists 3,691 fragrance ingredients in use, and 1,021 are natural complex substances such as essential oils and extracts.
Fun fact: Of those 3,691 ingredients, 3,312 are there for their smell and 379 do technical jobs. The list is updated about every four years.
Source: IFRA press release (July 2025)
Usual residents of England and Wales, Census 2021.
1 in 7.4 residents 13.5%
8.0 million residents (13.5%) had no passport in 2021.
Fun fact: That's down from 9.5 million (16.9%) in 2011. In a train carriage of 75 people, expect about 10 with no passport.
Source: ONS, International migration, England and Wales: Census 2021 (Nov 2022)
All water on Earth: oceans, ice, groundwater, air and more (USGS).
1 in 13,889 drops 0.0072%
Freshwater lakes hold about 0.007% of Earth's water and rivers about 0.0002%, about 0.0072% together.
Fun fact: Oceans hold 96.5% of all water. Rivers are just 0.0002% of it, roughly 1 drop in half a million.
FIFA's 2023 count of male pro players versus a world population of nearly 8.2 billion.
1 in 63,717 people 0.0016%
FIFA counted 128,694 professional male players at 3,986 clubs. The UN puts the world population at nearly 8.2 billion (mid-2024).
Fun fact: Mexico has the most pros of any country, 9,464, ahead of Spain with 8,560 and England with 5,582.