Is it true that as you go higher in energy, from 1 eV to GeV to 10 TeV, you can probe smaller spacetime region. Since the LHC has only probed up to the 4 TeV or so, it means they have probed the corresponding tiny region of spacetime.. meaning it is still possible spacetime becomes discrete at say 8 TeV and not near the planck scale? In other words, the energy probe is directly related to the region of spacetime that can be probed? Is there astronomical arguments or observation that spacetime is continuous to a certain eV? like 900 TeV? or do we rely solely on the LHC probe so far of 4 Tev to prove that spacetime is continuous up to it (and what is the formula to compute the corresponding tiny spacetime region probed at 4 Tev)?