the domain defined by a ruler|
A dimension is not a tourist location.
Fantasy authors and armchair cosmologists may write speculative brochures about the tourist potential of other dimensions,
but there is neither accommodation, food nor entertainment.
A dimension is not a place and never has been.
A dimension is what a 'ruler' measures.
It is only physical phenomena which have measurable dimensions.
Every dimension is defined by a reference standard which is as precise physically as the current technology permits.
Thus length could be compared to the standard light-year, mass to the standard imperial gravitational apple, time to the
revolutions of the earth, and curvature to the assumed undeviating straightness of relocating photons when they travel in
some hypothetical 'free space'.
The mathematical tradition of ascribing dimensions to concepts themselves like points, lines,
vectors, plane surfaces and volumes is to invite metaphysical compromise and confusion.
Certainly, mathematicians can take words from everyday usage and ascribe to them a specialized connotation, but there is
then no justification that the specialized usage could have application back in the real world.
Because we discover that three measurable quantities are required as coordinates... to model position uniquely in the space
we find ourselves inhabiting... we have been seduced by mathematicians into ascribing to space an intrinsic property
When time is also deemed to be significant to the modelling process we then credit space-time with being 'four-dimensional',
as if there was something uniquely profound and cosmologically significant.
But if we wish to measure the property of colour for example, the various measurable dimensions of 'hue', 'saturation',
'lightness', 'brightness', 'contrast', 'intensity', 'frequency', etc, highlight the reality that colour is multidimensional.
We don't suddenly feel obliged to propound some mystical significance about that situation.
Culturally hard-wired physicists, mathematicians and cosmologists, have stolen ordinary horticultural ideas
like 'folded' and 'wormholes' and 'expanding' and 'spontaneous', in an attempt to enhance their model with mystical
impenetrability and cosmological profundity.
The doctrine claiming that the cosmos materialized from a dimensionless point singularity is one of the more breath-takingly
absurd propositions foisted on the secular public.
We may very well be in a region of the cosmos where expansion is taking place.
Expansions and contractions are taking place wherever and on whatever scale we look.
Just because we happen to be in a meteorological region of changing air pressures and temperatures,
we don't suddenly assume that some sort of explosion has occurred somewhere.
Just because a balloon is expanding when hot air is injected, we don't assume that before the inflation started it must
have been created spontaneously from a singularity.
The balloonist transported the balloon to the launching site on a trailer.
If the evidence for the expansion of our region of the universe is sound...
and that is anything but certain...
to extrapolate in the imagination back to a dimensionless religious point of
stretches plausibility far beyond the plucking adjustments of any fine tuning.
And the suggestion that energy
could have many hidden dimensions folded in on itself...
measurable with a folding ruler one presumes...
makes as much sense as to suggest that every individual is internally creased
with dog-eared pleats of numerous former lives.
Ordinary words have been stolen by cosmologists and imbued with obscurantism.