PWrong wrote:Ok, you're right. But I still don't think time can be called 0D, because all that matters is the total number of dimensions.
0d is nill space, the void and empty real lowest space dimension.
In calculations though time (or rather times c the speed of light), in the zeroth slot of the space time 4-vector, and so might revered to as the zeroth dimension with respect to these 4-vectors.
dimension 0 is quite another matter as said for me this is nill space.
negative dimensions, if anything there might be some mathematical sense in making this anti-matter space, and as such merely a description (I don't know wether such is possible) the real dimension will of course be positive.
negative time is a real (temporal) direction, though we probably won't ever travel that way, despite several sci-fi's. As startrek "warp-speeds" it is very unlikely ever achieved (though no physics law is irrefutable, some future boy/girl might come up with replacements)
Currently I think someone might invent some gravity generator to bend space in such a manner that travel to other planets is possible, this is more likely then whatever real travel beyond the speed of light. Startrek warp speed might be some apllication of the above gravity generator in calculating the "inner bend space" one travels slowly against the "outer normal space". This way the warp speed wouldn't violate the current laws of physics as I know them.
That "gravity generator" would create a "worm hole" (which might be viewable as a kind of black hole, so I don't know whether a black hole is too much matter, it is just a lot of gravity, by whatever means (natural or otherwise) generated, a black hole might be a gateway onto a white one where everthing the black hole sucks up is spit out again, as such the black hole is the mouth of a worm hole, and the white the worm hole's rear end. As such a natural space bending, and a nature provided way of going to distant places)
pe scifi series: Thunderstone and Farscape use these kind of principles and also Buck Rogers "Star Gates" are some kind of "gravity generating" devices.
just some thoughts of various items above I spotted.
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