Aubrey de Grey speaking about the science behind human beings living forever in Hong Kong, December 2011. Photo: SCMP

Nearly 70-year-old maths problem partly solved by amateur

Well-known biologist spurs on search for solution to the Hadwiger-Nelson question after decades of stagnation

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Aubrey de Grey speaking about the science behind human beings living forever in Hong Kong, December 2011. Photo: SCMP
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