
5-6 Why Time Cannot Flow Backwards (16)
1. Physical Basis
- Time emerges from our sensation of light-speed moving space
- The space motion producing time is dispersive, radiating outward from an observer
- Unlike linear motion which is symmetric, this dispersive motion has no symmetry
- Motion only occurs in one direction - from observer towards infinite space
2. Relativistic Perspective
- Relative motion between observers causes time dilation
- At light speed, time appears frozen to each observer
- Exceeding light speed doesn't imply backwards time flow
- Zero length at light speed means no possibility of faster-than-light motion
3. Gravitational Effects
- Different gravitational fields have different time flow rates
- Time may vary in speed across cosmic locations
- However, varying speeds don't enable backwards flow
- Time comparisons only meaningful between different locations
4. Observer Dependency
- Time sequence is relative to observers
- Like directions (N/S/E/W), time requires an observer
- Without observers, there's no:
- Time sequence
- Speed comparisons
- Possibility of reversal
5. Key Conclusions
- Time backward flow is physically impossible due to space's dispersive nature
- Time travel to the past isn't prevented by time's non-existence
- Rather, it's prevented by the fundamental directionality of space-time
- Time exists in relation to observers but cannot reverse its flow
資訊
- 節目
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- 發佈時間2025年2月17日 上午8:48 [UTC]
- 長度4 分鐘
- 季數1
- 集數10
- 年齡分級兒少適宜