In philosophy, the Rietdijk–Putnam argument, named after C. Wim Rietdijk and Hilary Putnam, uses 20th-century findings in physics – specifically in special relativity – to support the philosophical position known as four-dimensionalism. If special relativity is applied to all space and time, then each observer will have their own plane of simultaneity, which contains a unique set of events that constitutes the observer's present moment.
In philosophy, the Rietdijk–Putnam argument, named after C. Wim Rietdijk and Hilary Putnam, uses 20th-century findings in physics – specifically in special relativity – to support the philosophical position known as four-dimensionalism. If special relativity is applied to all space and time, then each observer will have their own plane of simultaneity, which contains a unique set of events that constitutes the observer's present moment.
Source: Wikipedia "Rietdijk–Putnam argument" · CC BY-SA 4.0
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