To some observers (but not yourself), you will arrive at Mars before you leave Earth.  Unless some frames of reference are "special", the person observing you as arriving at Mars before you leave Earth will be factually accurate in their observation.  Nor will they be restrained by the hand of God from abusing this observation to create paradoxes.  Nor will you be restrained from using this frame of reference to return to Earth before you leave Earth.

Do the math.  For the love of God, do the math.  You can claim the great mystery of the unknown to obscure your ridiculous ideas, or you can use the equations which we actually have to solve problems like this.  Forget about time, forget about the relativistic effects on the superluminal frame of reference, forget about twin paradoxes.  Just look at causality.  If your analysis doesn't yield the same results as mine (and the rest of the scientific world), you've done something wrong.

-Dr. B

I use good math.  This is bad math:

True from the sun's frame of reference, I suppose.  Very cute.

Grab the relative simultaneity equation, screw around with it until you get a delta-t' that isn't zero, and pretend you have instant teleportation between the different frames of reference.  That will give you an idea of what happens to causality at FTL speeds.  You don't even have to do the Lorentz transformation yourself.  Just google "special relativity equations".  All you have to do is algebra.  You can do algebra, right?

The accuracy of whatever you caclulate is experimentally verifiable to about fifteen decimal places.  Any new theories of relativity will give you the exact same answer, no matter what we discover in the future.  Beyond those fifteen or so decimal places, maybe there's room for a better equation.  But never in the future of mathematics will a new theory give you a different answer within that degree of specificity, or else it's wrong.

If this isn't enough to convince anyone, then you may as well believe the Earth is flat.

-Dr. B

...and every point of view stationary with respect to the Earth.

-Dr. B

Thank you.

Still, I'm not convinced, words like "screw around with it", "pretend", "any new theories will give you the same answer", "no matter what", "never", and my favorite one "accuracy of whatever you calculate is experimentally verifiable to about fifteen decimal places". Does that mean if I calculate the world is flat I can experimentally verify it to fifteen decimal places? Sweet

The original argument is that you are move at such speed that you go from the sun to the earth in an instant. Thus when you arrive on earth, you will arrive in time to still see the light from the sun when you were there, thus you can see yourselve in the sun while you are in earth. But definitely this involve much more than twice the speed of light.

You can try.

The original argument, and in fact, all subsequent arguments have nothing to do with physical observation whatsoever.

I deserve more intelligent discussion.

-Dr. B

So my IMAGE would "arrive" at my destination, but I wouldn't make some kind of copy of myself, right?

u kno, 100 yrs ago, ppl said that it was impossible to fly, 50 yrs later, ppl said it was impossible 2 go faster than the speed of sound, ppl used 2 say that there were no more big scientific problems left to solve, then einstein came along & made them look foolish,  today, we have mathmatical proof that mathmatics are not definite and are very fallable, mathmatecally speaking, i can run straight into a brick wall & theres a chance i could pass right through uninjured, leaving the wall intact. so unless u kno everything in the universe & essentially become god, u cant say that something is impossible

also i think in my lifetime (im 18) im gonna c man land on mars and in my sons lifetime he might c mars and maybe some other planets in our solar system be colonized. nw to leave the constraints of the solar system is going to be very hard and might not happen for thousands of years ... also for those of you that say einsteins theorys were incorrect theres this great scifi book called forever war that deals with faster than speed travel and the effect of time dilation on a person and  that persons home planet (remember what is time????? time is measured simply by the earths rotation around the sun, in deep space ur not rotating anything, ur not being held by the constraints of time in deep space time doesnt exist)

nah, im not lucky enough lol