[spinestein]

The most amazing result of string theory that I've read is the prediction that the Planck length may be a fundamental unit of size to our universe (much the same way that the speed of light is a fundamental unit of speed), and that trying to measure anything smaller than the Planck length is, in reality, the same thing as measuring anything larger. The size of any object compared to its Planck length and the reciprocal of the size of the object compared to its Planck length are interchangeable.

I wonder if this prediction might be an artifact of a misunderstanding or misapplication of the string theory equations, but if it's accurate this is on the order of the formulation of general relativity.

[Alamo-Girl]

Thank you so much for the heads up on the speculation about object size below Planck length being a reciprocal above Planck length!

I would very much appreciate a source so that I can explore it further. I'm particularly interested in how it relates to Greene's work on Planck scale physics leaving "an observable signature in the cosmic microwave background radiation".

IMHO, because of dualities and mirror symmetry we ought to expect such relationships.