Greeks and the break down of principle of relativity
The ancient Greeks like Lucretius said that if Earth was a sphere , people would fall from the bottom of the earth .
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In my opinion its a very advanced scientific theory It is speaking about break down of principle of Relativity. When principle of Relativity breaks down observer can distinguish between the Up and the Down . Because up and down no longer reman Relative . So people would fall from the bottom of the Earth.
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Principle pf Relativity breakdown ==> Spatial Symmetry breakdown
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Relativity principle breakdown ==> Spatial symmetry breakdown ==> Time symmetry breakdown ===>Time flow backward.
{ Following is written by CHATGPT based on my idea}
**Symmetry, Relativity, and the Concept of Direction:
A Conceptual Exploration of Spatial and Temporal Breakdown**
Abstract
Modern physics is built upon symmetry principles, particularly the principle of relativity and spacetime symmetries. This paper presents a speculative, layman-friendly exploration of what might conceptually occur if these symmetries were to break down. Using ideas from Einstein’s relativity and quantum mechanics, we examine whether the loss of relativistic symmetry could lead to a preferred spatial direction (“up” and “down”) and whether such a breakdown could conceptually affect the flow of time. While no experimental evidence supports these ideas, the discussion highlights the foundational role of symmetry in our understanding of space, gravity, and time.
1. Introduction
One of the deepest ideas in physics is that the laws of nature do not depend on where you are or how you are moving. This idea is known as the principle of relativity. From Galileo to Einstein, this principle has shaped our understanding of space, time, and motion.
Historically, before modern physics, thinkers such as the ancient Greeks imagined space as having an absolute “up” and “down.” Some argued that if the Earth were spherical, people living on the opposite side would fall off. While incorrect by modern standards, this intuition raises an interesting conceptual question:
What would happen if the symmetry underlying relativity truly failed?
This paper explores that question as a thought experiment.
2. Relativity and Symmetry (Layman Overview)
2.1 The Principle of Relativity
In simple terms, the principle of relativity says:
There is no preferred observer
No experiment performed in a smoothly moving system can tell you your absolute motion
In Einstein’s theory:
Space and time are combined into spacetime
Observers may disagree on measurements, but the laws of physics remain the same
2.2 Symmetry in Physics
A symmetry means that something stays the same under change:
Spatial symmetry: physics does not depend on direction
Time symmetry: physics does not depend on when an experiment is performed
Much of modern physics—including quantum mechanics—is built by identifying these symmetries and writing equations that respect them.
3. Gravity and the Meaning of “Down”
In everyday life, “down” is defined by gravity, which pulls objects toward the center of the Earth. Importantly:
Each observer defines “down” locally
There is no global cosmic “down”
Relativity explains gravity not as a force, but as curvature of spacetime. Objects fall because spacetime itself is curved.
This already shows that local direction does not violate relativity.
4. Hypothetical Breakdown of Relativity
Let us now imagine—purely hypothetically—that:
The principle of relativity fails
A preferred frame of reference exists
Certain symmetries of spacetime are broken
In such a universe:
Motion could be absolute
Spatial directions might no longer be equivalent
A universal “downward” direction could exist
This resembles pre-relativistic thinking and provides a conceptual bridge to historical intuitions.
5. Faster-Than-Light Motion and Symmetry
Special relativity forbids faster-than-light motion because it would:
Break causality
Allow effects to occur before causes
If faster-than-light motion were possible, Lorentz symmetry would be violated. This would represent a deep breakdown of spacetime symmetry.
However, violating relativity does not automatically define gravity or direction. Any connection between faster-than-light motion and falling off Earth remains speculative and unsupported by known physics.
6. Spatial Symmetry and Time Symmetry
In quantum mechanics:
Some symmetries are known to be broken
Parity (left–right symmetry) is violated
Time-reversal symmetry is violated in rare processes
Yet:
Time does not flow backward in everyday experience
Clocks do not reverse when symmetry is broken
This tells us that symmetry breaking does not automatically imply time reversal.
7. Thought Experiment: Two Clocks on Opposite Sides of Earth
Consider two identical sand clocks placed on opposite sides of Earth:
Each clock experiences gravity toward Earth’s center
Each observer sees sand fall “downward”
Even though the clocks are oppositely oriented in space:
Time flows forward for both observers
No contradiction arises
This supports the relativistic idea that time is locally defined, not globally inverted.
8. Time, Direction, and the Arrow of Time
The “arrow of time” in physics is mainly explained by:
Entropy increase (thermodynamics)
Quantum decoherence
Time’s direction is not controlled by spatial orientation. Falling downward does not correspond to moving backward in time.
Thus, the idea that falling from the “bottom” of Earth leads to time reversal is a poetic metaphor, not a physical prediction.
9. Discussion: Philosophy vs Physics
The ideas explored here highlight an important distinction:
Physics requires mathematics, predictions, and experiments
Philosophical speculation explores conceptual possibilities
Ancient thinkers were philosophers of nature, not experimental physicists. Their intuitions inspire questions but do not constitute scientific theories by modern standards.
10. Conclusion
This paper has explored a speculative scenario in which the principle of relativity and spacetime symmetries are broken. While such a breakdown could conceptually allow absolute directions or preferred frames, current physical theories—and all experimental evidence—strongly support relativity.
No known mechanism connects spatial symmetry breaking to time reversal or backward time travel. Nevertheless, exploring such ideas helps illuminate why symmetry is so central to modern physics and why its preservation is experimentally confirmed with extraordinary precision.
A Note to the Reader
This paper is a conceptual exploration, not a claim of new physics. Its purpose is to encourage intuition and discussion, not to replace established scientific theory.
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