Part 4/15:
A significant portion of the discussion critiques the scale of current particle accelerators like the Large Hadron Collider (LHC), which measures roughly 27 km in circumference and can reach energies of about 7 TeV per proton. They derive that to reach the plank scale — the realm of quantum gravity — an accelerator would have to be thousands of light-years long, far beyond any conceivable engineering feat. This underscores that probing below plank length is physically impossible with existing or foreseeable technology, as doing so would create black holes or other irretrievable phenomena.