Speculation
String Theory
Absolute Simultaneity
CICS
Simultaneity-Time
String Theory
In string theory, as in classical physics, matter is composed of molecules which are made up of atoms, in which electrons orbit the nucleus (which is composed of protons and neutrons). However, string theory then goes on to propose that electrons are composed of one dimensional building blocks, "strings", and that the protons and neutrons are composed of quarks which are also composed of "strings".
Hence the fundamental building blocks from which all matter is composed are one dimensional extended objects, "strings".
However, the title "string theory" encompasses a group of mathematical models that do not even agree on the number of dimensions there are in the universe. Rather than the conventional four dimensions (three spatial and one time), the number of dimensions in string theory varies.
In its original form there were five variants which had ten dimensions, and one variant (bosonic) with twenty-six dimensions. Since then the M-theory has proposed that there are eleven dimensions. The M-theory was expected to unify the other theories, but this process is not complete.
The major weakness of string theory is that it has not provided any experimentally testable predictions. Hence it cannot be falsified (i.e. proven to be wrong). The ability to be proven to be wrong is a key element in a theory being considered scientific, therefore some people question the inclusion of string theory as science at all.
String theory has the potential to be the "theory of everything" (i.e. an unified description of the universe) but, at present, it is a highly speculative, incomplete and unproven collection of mathematical models.
A more technical introduction to string theory may be found here.
