The question I want to ask is pretty much in the title: Why is string theory becoming less of an excitement amongst the scientific community? I don't want to sound picky, but my background in physics is pretty inferior. I understand that the explanation is mainly in the mathematics, so, just to give a quick background, I've taken first year physics in college and have a pretty minor background in cosmology. In mathematics I've gotten no further than multivariable calculus so far. Please answer accordingly =D. Thanks! EDIT: Marcus, your post was EXTREMELY helpful. Thank you very much for your input :D. For the rest of you: When I posted my minor background in science and math I did not intend for you guys to treat me like a half-brained nitwit. Some of you directly criticized me for asking a question and some of you provided responses that were nothing more than "do some research". Inducting that I am (and I quote) "brainwashed" and that I asked this as if I was "stating fact" is absurd logic. I am not here to be flamed at, I am here to learn. Simply stating "only dumb people think this" is naive and uncalled for. Modern application of string theory is substantially smaller than Newtonian physics and Einstein's Relativity, so it is very viable to question the theory. I really am looking for input that is at the very least honorable, not to mention insightful, which is what I was originally going for. I refuse to address each insufficient response (and sorry for the few of you that were helpful) out of sheer laziness. Instead, I will rephrase the question: Why have I observed many respectable scientists with PhD's in physics or astronomy personally telling me that they see string theory as an improbable theory? Why does a portion of the scientific community not invest their beliefs in string theory? What is the science behind this rebuttal? I am not looking for a history lecture. If you cannot think of a scientific answer, then I ask that you do not contribute. Any posts that scientifically explain why string theory is valid or invalid is fine by me. The topic is, though, why are strings seen as an scientific improbability by some scientists?