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A representation of one version of the new best arrangement of points on a plane with pairs separated by a unit distance. Álvaro Lozano-Robledo

An AI solution to an 80‑year‑old problem has shocked mathematicians

Hungarian mathematician Paul Erdős’ ‘planar unit distance conjecture’ has stood since 1946 – but an AI disproof has made mathematicians pay attention.
Many of us are connected some way, somehow. Arthimedes/Shutterstock.com

Our world is getting smaller

Social networks connecting us through kinship and friendship are often small. This can often lead to surprising points of connection between two people who do not know each other.

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