I found this incomprehensible, possibly because I am ignorant of physics. The type of article that works for me doesn't condescend, but explains the consequences of a new theory in layman's terms, much as a good theory makes predictions that are subject to empirical testing.
Can anyone explain what the consequences of this theory might be? Beyond just saying that spacetime is really just 4D space or that time can be quantized.
Does this change how clocks work? Does it change our beliefs about what happened during the big bang? Does it have any effect on what happens to matter falling into a black hole?
So far as I could read, this proposed new ways of modeling or explaining existing phenomena and a new way of explaining a paradox, but no consequences of any note. And I absolutely couldn't understand the premise that this means time travel is impossible from the article alone.
Was an entire paragraph missing that explained why traveling in four dimensions of space instead of three dimensions of space and one of time means that travelling backwards in time is impossible, in a way that the existing 3D+T model does not prohibit?
Can anyone explain what the consequences of this theory might be? Beyond just saying that spacetime is really just 4D space or that time can be quantized.
Does this change how clocks work? Does it change our beliefs about what happened during the big bang? Does it have any effect on what happens to matter falling into a black hole?
So far as I could read, this proposed new ways of modeling or explaining existing phenomena and a new way of explaining a paradox, but no consequences of any note. And I absolutely couldn't understand the premise that this means time travel is impossible from the article alone.
Was an entire paragraph missing that explained why traveling in four dimensions of space instead of three dimensions of space and one of time means that travelling backwards in time is impossible, in a way that the existing 3D+T model does not prohibit?