Hey all, first post here. I had the opportunity recently to ask Steven Weinberg a question that the physics professors at my university didn't have an answer to. In short, Weinberg said he couldn't understand where I was going with my question. My heart broke as I obviously wasn't able to convey what I meant. So, I have come here hoping that someone could point out an error in my question/thought experiment. I have had this question for over twelve years now despite reading just about every book by Hawking, Susskind, Kaku, Greene and Weinberg. I recently created this video to illustrate the entirety of the question. https://www.youtube.com/watch?v=http://www.youtube.com/watch?v=PNimFBZv_1U Here is my general assumption: Strings are bound to a certain location and are not "free floating." As matter travels through space, strings vibrate and transfer the vibration to another string. Basically, the strings that formulate the particles of your body are different now then the ones that made up your body when reading the beginning of this sentence. Since we are traveling through space and are no longer at the previous location in space time, the strings have changed. Thanks for any input you can provide.