Is time something that flows — or just an illusion? Exploring space-time as either a fixed “block universe” or a dynamic fabric reveals deeper mysteries about existence, change, and the very nature of reality. Few ideas in modern science have changed how we understand reality as deeply as space-time, the intertwined union of space and […]



Summary

The concept of space-time challenges our perception of time, questioning if it’s a flowing river or a static illusion. The “block universe” theory suggests all moments exist simultaneously within a fixed space-time. Conversely, a dynamic space-time envisions a constantly evolving fabric. These opposing views raise profound questions about the nature of existence, change, and reality itself. Understanding space-time, and whether it’s fixed or fluid, is crucial for grappling with some of the deepest mysteries in modern science and philosophy.

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