I Time Travel in Newtonian Spacetime: Is it Possible?

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Time travel in Newtonian curved spacetime raises questions about its feasibility due to the nature of Newtonian physics, which defines space as Euclidean and time as absolute. The discussion suggests that Newtonian curved spacetime is merely a formalism for traditional Newtonian gravity, lacking mechanisms for time travel. It is implied that time travel could only be considered if the spacetime exhibits non-trivial topology. The conversation highlights the limitations of Newtonian mechanics in addressing time travel concepts. Ultimately, the consensus leans towards skepticism regarding the possibility of time travel within this framework.
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Is time travel possible in Newtonian curved spacetime?
 
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Newtonian space is Euclidean and Newtonian time is absolute.
 
accdd said:
Is time travel possible in Newtonian curved spacetime?
Newtonian curved spacetime is just another formalism for standard force-based Newtonian gravity. So I don’t see how, unless the spacetime has some non-trivial topology
 

Thread 'Physical Interpretation of Frame Field'

Moderator's note: Spin-off from another thread due to topic change. In the second link referenced, there is a claim about a physical interpretation of frame field. Consider a family of observers whose worldlines fill a region of spacetime. Each of them carries a clock and a set of mutually orthogonal rulers. Each observer points in the (timelike) direction defined by its worldline's tangent at any given event along it. What about the rulers each of them carries ? My interpretation: each...
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