String theory is a theoretical framework that attempts to unify all the forces of nature, including gravity, by postulating that everything in the universe is made up of tiny strings. On the other hand, special relativity is a well-established theory that describes the relationship between space and time in the absence of gravity.
Special relativity is currently the more widely accepted theory by the scientific community due to its extensive experimental evidence and successful predictions. However, string theory is still being actively researched and may one day be accepted as a valid theory.
There have been attempts to reconcile string theory and special relativity, but so far, there is no definitive answer. Some theories, such as M-theory, incorporate elements of both string theory and special relativity.
String theory predicts the existence of multiple dimensions by postulating that the fundamental building blocks of the universe, the strings, vibrate in these extra dimensions. This allows for the possibility of more than the four dimensions we experience in our daily lives.
If string theory is proven to be correct, it would provide a unified framework for understanding all the forces of nature, including gravity, and could potentially lead to new technologies and advancements. Special relativity has already had significant implications in areas such as GPS technology and our understanding of the universe.