Velocity of Light: How Space and Time Change

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The discussion centers on the implications of the constant velocity of light for all observers, challenging traditional notions of space and time. It references Einstein's train thought experiment, which illustrates how different observers perceive simultaneity differently based on their relative motion. This leads to the conclusion that time and space are not absolute but are intertwined in a way that depends on the observer's frame of reference. The conversation emphasizes the need to rethink intuitive concepts of time and distance in light of relativistic physics. Understanding these changes is crucial for grasping the fundamentals of modern physics.
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I have the question:

"If the velocity of light is found to be the same for all observers, explain why our simple intuitive ideas of space and time need to change?"

Please can anyoe help me out? I've no idea how to even begin...
 
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