I have a question about HT's math thread when the speed of light is involved.

For the two numbers he listed, if both numbers are equal than would that mean a rocket which is travailing 99.9(repeating) the speed of light would be equal to the speed of light? The problem there is that the rocket is able to get close to the speed, but it can't go the speed of light due to the infinite mass and energy problem, but if " 3*(1.333...)   <--repeating decimal" is equal to 4 then that would mean the rockets speed would be equal to the speed of light. From a math point of view the rockets speed would be equal but from a physics point of view it can't be, so which view would be correct?

i think it might have to do with the fact we really cant reach the speed of light no matter what we do because not everything we do has a 100% yield when being done. we might lose speed from friction, aerodynamics, etc. but my best guess is that the .99999 thing is to do with maths theory and not sciency stuff. idk im not an astronomer

Repeating numbers aren't real; they're abortions of integers.

Even in advanced math, one should always substitute (1/3) for .3 repeating.

Yes, an object moving at 99.9...% the speed of light is literally moving the speed of light. So, it's not possible to move that fast.

It would be immensely difficult to even approach that number, though, and it's important to note that an object's mass doesn't actually change with speed -- its relativistic mass does. Once you start dealing with FTL particles you're talking tachyons and other timey wimey stuff.

Repeating numbers aren't real; they're abortions of integers.

Even in advanced math, one should always substitute (1/3) for .3 repeating.

shut the fuck up