RE: Steemit Basic Income Giveaway (The Answer) by bengy

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· @bengy ·
Haha... "as we currently know", is the qualifier that is assumed! 
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@sugarfix ·
I think by pinning a figure on the speed of light when it is relative rather than absolute is a bit presumptious. We know that time can be seen to contract the faster we go as these changes are observable from a single point. You can't do that with speed. I propose that what we are seeing is a manmade artifact due to the way we have defined things. It is not only time that appears to contract but everything else too. Thus travelling at speeds close to the speed of light would mean that what is n front of you is fully expanded and that light would still be appearing to be travelling at 186km/s faster than you. Thus if you went faster the speedometers on your ship would read faster than the 186k m/s but to the observer at the start point you would still be going slower.
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@bengy ·
I'm not quite sure I understood your comment, the speed of light is constant with respect to all inertial frames of reference. So, from that point of view, it is a constant and absolute figure (as far as we know!). 

As we approach the speed of light, it is as you say, and asymptotic in behaviour with a problem at v=c. To do the faster than light part, we would need to do a bit of leap of faith and jump over the problem (that bit is for the engineers!). The mathematics allow for faster than light objects, as long as they don't cross back down (again, it is a question, if this is an artifact of the modelling or actually a real thing). The crossing point is the problem if you are planning to traverse the entire space in between the two points. 

This is from memory, it was a while back! and things might have changed significantly since I learnt it!
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@sugarfix ·
I am trying to say that although we may be travelling at say 230k m/s according to the instruments on the ship light is travelling at 186k m/s faster according to the same instruments. To the outside observer we are both travelling at 186k m/s. Not only time is compressed but distance and defacto velocity. ie. We can travel faster than 186k m/s but not travel faster than the speed of light.
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