>>>Never, as he's permanently dead and has no intention of changing that (even the hypothetical 'he' which doesn't exist).
>>>
>>>But his statue may run out, on the double (double what? never understood that one).
>>
>>Double time. Marching twice as fast. On the double Quiiick Maaaarch (usually bellowed in your ear)
>
>But... now it makes even less sense. Double time would mean half speed, wouldn't it? Instead of getting there in 10 seconds, it would now take 20.
>
>So every army is the same. We used to say "why is there a guard at the main gate? - so the logic doesn't creep in".

You're thinking of time in its temporal meaning not its tempo meaning.