Why doesn't C++ have a const universal reference?

Question

Scott Meyers says (for parameters to function templates):

Universal references can only occur in the form "T&&"! Even the simple addition of a const qualifier is enough to disable the interpretation of "&&" as a universal reference.

Why doesn't C++ have a const universal reference? Any technical reason?

Answer 1

What would a const universal reference be? It would be a reference that can not be modified. And moving from an rvalue-reference is a modification. Therefore, if there is such a thing as a const universal reference, it is simply const T&.