# Reply to post: Re: Creates more problems than it solves?

### Three certainties in life: Death, taxes and the speed of light – wait no, maybe not that last one

#### Re: Creates more problems than it solves?

speed of light in a vacuum is assumed to be a constant. however, our velocity through time would have to be NOT decelerating for that to work... bremstraelung from tachions? interesting thought experiment.

*ahem*

Anyway, light speed in a vacuum is the absolute maximum speed something can go relative to something else. hence relativity.

light can, and does, attempt to go faster than it's supposed to through a medium and creates cerenkov radiation [did I spell that properly] aka "that blue glow" you see in photos of nuclear reactors operating in open pools of water. Those are various particles being forced to move slower because they hit water [and its speed of light is just a bit slower than the particle].

if our velocity through time is NOT a constant, i.e. is slowing down [or maybe speeding up] then light over time wouldn't be going "the same speed" any more. I wonder if THAT is what they're basing their theory on? yeah ok 'velocity' is time-based, so "changing velocity through time" simply means (by my definition) that the time axis isn't change at the same 'rate'. 1 second may not be 1 second a zillion years ago, in other words. If time flowed differently back then, the speed of light would ALSO be different [being based in time]. It would also mess up relativity calculations like E=mc^2 and so mass and/or energy is no longer a constant. damn them!

now I'll want to know where the mass and/or energy WENT to (or CAME from) when it changed over a zillion years' time.

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