Do strings move in spacetime ??? If at every planck size point in spacetime there is a Calabi-Yau manifold. Do the manifolds move with the expansion of the universe so that the strings always have a constant vibrational pattern that determines their effect/elemental property or are the manifolds fixed in postion such that the strings change vibrational shape to accomodate movement and changing matter. What we see as objects moving is actually strings changing shape but at such a small scale and so fast that we only see fluid motion at a minimum of 25 frames per second. Does that make sense ???