Energizing spin networks in LQG & Background Independence inq.

Hi,

In Superstrings. Brian Greene said that If you use high energy or
momentum (for low wavelength as it is inversely proportional) to probe
into the planck length, the superstring would get larger in size.
No black holes would be formed unlike in standard model
(without GR/QM unification).

Now in Loop Quantum Gravity. What would happen to the spin
networks if you'd use similar high momentum energy probe into
the planck length? Would the spin networks just vibrate
violently.. like boiling or would it be magnify too like strings?

Another question. Lee Smolin keeps repeating again and again in
his book "Three Roads to Quantum Gravity" that superstrings is
not background independent unlike LQG. How significant is
this background independence state. How would you intend
to make superstrings background independent?

quant

.

Quantcast