Sorry about the confusion. Nevertheless, my post highlights the issues, and I'd like you to comment.Originally posted by Tom
Tom: Again, how do you know that?
I know it via reason. (Followed by some stuff that shows you completely missed the point of the question)
http://feynman.physics.lsa.umich.edu/strings2000/mtheory.html [Broken]LG, I am not asking you how you know 1-d and 2-d objects do not exist in reality. I am asking you how you know that those objects are assumed by string theory. [/B]
"Until recently, the best hope for a theory that would unite gravity with quantum mechanics and describe all physical phenomena was based on strings: one-dimensional objects whose modes of vibration represent the elementary particles. In the past few years, however, strings have been subsumed by M-theory."
"We are used to thinking of fundamental particles (like electrons) as point-like 0-dimensional objects. A generalization of this is fundamental strings which are 1-dimensional objects."
(Please note that the bold-type is provided by the author himself.).
M-theory is founded upon a 2-dimensional membrane.
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