Quote (BovineDesi @ Sat, Jul 18 2009, 08:24am)
Okay, heres string theory in a nutshell (very simplified) -- basically we have einstein's general relativity, and quantum mechanics, both which explain phenomena in this universe. The one hitch is that general relativity only accounts for large scale objects and quantum mechanics only deals with microscopic objects, so scientists have been looking for a way to combine the two theories.
String theory's most basic underlying assumption is that all objects in this universe when broken down -- are not points, but STRINGS. So basically instead of describing everything as a collection of dots, they're a collection of strings. Now with this assumption, we can make a lot of extrapolations which i won't go into -- but the problem with string theory is that scientists need to keep adding more and more "branes" and "dimensions" just to make it work, so theres a lot of doubt as to the theory's validity.
This guy explained it perfect....