we all agree that light speed is constant.
so your headlights will still work because the light must always remain ahead of you to keep the speed constant. so you will never over take your headlines.
It does some funny things to you to compensate. the time dilation formula will ditate how your relative time will slow inorder to keep light constant. It also means that you will shrink or compress the faster you go.
time dilation formula.
l'=l*sqr(1-v^2/c^2).
if you look carefully at it its simply a transposed pythagoras theorm of a2+b2=c2 to solve for b or a.
http://en.wikipedia.org/wiki/Time_dilation
One caveat is that it maybe possible to even travel faster than the speed of light? This is because there is no limit to how fast space can expand. An alien specie may even have the technology to compress the space in from of its ship and leap over it. Expanding it back behind it. This idea is used in science fiction like the warp drives on Star trek.
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we all agree that light speed is constant.so your headlights...
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