Definition of theory (n)<quoted text>
In science a theory is something that has been tested and proven.
A scientific theory is a well-substantiated explanation of some aspect of the natural world, based on knowledge that has been repeatedly confirmed through observation and experimentation. Scientists create scientific theories from hypotheses that have been corroborated through the scientific method, then gather evidence to test their accuracy. Scientific theories are the most reliable, rigorous, and comprehensive form of scientific knowledge. This is significantly different from the word "theory" in common usage, which implies that something is unsubstantiated or speculative.
[ th əree ]
1.rules and techniques: the body of rules, ideas, principles, and techniques that applies to a subject, especially when seen as distinct from actual practice
2.speculation: abstract thought or contemplation
3.idea formed by speculation: an idea of or belief about something arrived at through speculation or conjecture
Speculation. There are those that when they speculate it gets a lot of respect. A proven theory is a fact. If the right person has a theory the wheels of research begins. It is to be respected but it is not prove. In regards to String. There are many different theories, as I mentioned as a whole it is either amongst the most respect or the most respected.