Because we see no voids no matter how far away we look it is claimed that space
bends back upon itself so that there are no edges. This implies that there must
be some other dimension for it to bend into. General relativity also requires an
extra dimension where space is supposedly distorted by the presence of mass.
String theory, which is currently popular, is also not content with just the three
observable spatial dimensions but instead postulates that there are at least 10
dimensions.
No spatial dimensions other than three we are all familiar with have ever been detected
and neither can they be.
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If we take a cube we can define every point within that cube with just three coordinates
from whatever point on its frame we choose. There is no limit to how small a piece
of space can be defined and therefore it is totally illogical to suggest that extra
dimensions could be rolled up into spaces smaller than we can detect especially
when there is a theory that can explain everything without resorting to such trickery.
FET is able to explain every known phenomenon using only
the three normal dimensions of space and a separate time dimension. It does so without
having to introduce forces that act as if by magic, space that bends back upon itself,
or have temperatures, pressures and energy densities that go far beyond what we
can experience here upon the Earth.
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