What is space-time? A mystery at the heart of reality

Physicists' understanding of space-time may be based on a hidden misunderstanding, according to a new philosophical perspective. The popular view of a "block universe" where the past, present, and future coexist is being challenged, suggesting that this concept may be flawed. This new argument proposes that physicists are failing to distinguish between things that exist and things that occur, leading to confusion about the nature of space-time. The distinction between existence and occurrence is crucial to resolving the mystery surrounding space-time.

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