The long-running series in which readers answer other readers’ questions on subjects ranging from trivial flights of fancy to profound scientific and philosophical concepts
Five hundred years or so ago, a significant number of people thought the world was flat. In 500 years’ time, which current scientific theories will be relegated to the same level as the flat Earth theory is now? Richard Cutsforth, Chichester
Notes & Queries will return in 2022. Send new questions to nq@theguardian.com.
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