Infinity, Sets, and Causality

[BruceGod]

Hi,

Actually, none of the examples that you give are 'dimensions' in the mathematical sense.  It would help if anybody interested in these topics bookmark Wikipedia and MathWorld and spend a few minutes looking up what they want to say before posting nonsense.  For instance, had you taken a little while to read about dimensions, you would have seen both why your examples are poor and have seen some good examples.
Depending on the universe of the subject under discussion, there may be anything from zero (admittedly a dull case) to infinite (any number of functional spaces such as Hilbert, Fourier, etc.) dimensions.  In general relativity (GR) there are, indeed, only four dimensions.  Theories which embed GR in higher dimensions are *not* GR but, theories *about* GR.
Yes, but that is a property of four dimensional space-time relative to Euclidean space time (i.e., observed space time has a non-Euclidean metric).  It is not, and does not require, an additional dimension.
This is just a topology question in four dimensional space-time and requires no additional dimensions to describe.

As to the rest of your statements, besides the fact that they border more on meta-physics (or even fantasy), none of the things you mention are geometric dimensions.  So, while they may add complexity to the discussion, they do not add dimensions in the mathematical or physical sense.

--Pete
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Yes, but as space-time is depicted as planar, it must have a direction to wrinkle in. Also, wormholes are like tesseracts, in that they pierce through space-time. Hence, another direction at right angles to space-time. Yes, the rest are highly theoretical, and/or fantastical, but there is at least a great number of reports for them, are there not? And, there has yet to be any serious inspection into whether or not they do in fact exist. Also, it wasn't meant to be as serious as you're making it out to be. Just to start those brain cells rubbing and sparking together.