Based on Einstein's model:
Many have dreamed of figuring out how to travel in time—and dismissed it as impossible. Now, researchers have proposed a mathematical model that makes time travel possible, using concepts of Einstein’s theory of general relativity coupled with the hypothesis that time is not a separate dimension.
Regarding the math on this, which I have provided in the PDFs:
These negatives could refer to anti de sitter space but they do refer to transtemporal dimensionality within rescaled regions of spacetime, which is another way of speaking of acausal symmetry.
@ Daedalus, you should share your model as it pertains to special relativity beyond the speed of light, which was what this thread was intended to falsify.
An interesting idea, but an impossibility. We could never time travel period in a way that is imagined. We could time travel in a sense of going to a younger planet than the Earth or an older planet than the Earth, but time travel itself is of the imagination. We could never devolve time and rewind the ''hands of time''. Now is continuous, memories are our past. We can not return to a time of a past memory although we can '''time-travel'' in our minds back to that memory.
Time travel is subjective and always will be.