Einsteins formulas are only relevant for speeds less than the speed of light... and only if you use "newton movement". At least thats the case which Einstein used for his formulas.
The trick movement of the speed drives (and the FTL drives) will be (most likely) governed by other laws (laws of 'plot' ?
).
Even if the trick drives are ruled by Einstein, the time dilation is only
1 / sqrt ( 1 - 0.1^2 ) = 1 / sqrt(0.99) = 1.005
(v^2 / c^2 is 0.01 for v = 0.1*c)
(and no, an imaginary time dilation is just "using formula out of context", not "moving back in time")
The trick movement of the speed drives (and the FTL drives) will be (most likely) governed by other laws (laws of 'plot' ?
).Even if the trick drives are ruled by Einstein, the time dilation is only
1 / sqrt ( 1 - 0.1^2 ) = 1 / sqrt(0.99) = 1.005
(v^2 / c^2 is 0.01 for v = 0.1*c)
(and no, an imaginary time dilation is just "using formula out of context", not "moving back in time")