Hey all, I started reading up on string theory the other day, and a colleague told me that string theory is already being applied in communications. He said that it is being used to account for the effect of gravitation on electromagnetic waves. This seems a little too hard to believe, however, since, as far as I know, string theory is notorious for not having real-world applications and being very difficult to prove experimentally. Moreover, I wouldn't really expect the gradients of gravitation to be noticeably effective during terrestrial communications. Since my knowledge is pretty limited in this field, I would appreciate the opinion of people who are more knowledgeable than myself, so please feel free to share your thoughts!