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2025 Award

You can't travel faster than ##c##. So your question is "how should I interpret some maths I've applied in a regime where the same maths says I can't reach".

spacecadet2563 said:

In his formula if V were 2C than that fraction reduces to 2 and the result is a √-1 in the denominator. How is that to be interpreted in a time formula?

Einstein came up with a lot of formulas. Do you mean the time dilation formula: $$\gamma = \frac{1}{\sqrt{1-v^2/c^2}}$$

If so, for ##v=2c## the denominator is ##\sqrt{-3}## not ##\sqrt{-1}##. So it is unclear if you made a mistake in the calculation of the above formula or if you were referring to another formula.