(urth) Travelling North aka miscellaneous thoughts on Wolfe

[James Wynn]

That said, I'd prefer to travel in imaginary time.

On 6/10/2010 8:54 AM, Paul Zinn-Justin wrote:
> That is incorrect. Some quantities might become imaginary but that is 
> a mathematical artefact.
>
> On 06/10/2010 03:45 PM, Jack Smith wrote:
>> It is also not clear that moving faster than the speed of light would 
>> allow you to go backward in time.   If the mathematics of the 
>> relativity equations correctly describes reality, then a velocity 
>> greater than the speed of light puts you not into negative time but 
>> into imaginary time.
>>
>>
>
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