The cancelled Superconducting Super Collider had 3x beam energy of 40TEV vs LHC 14TEV. While it has been cancelled, could it be re-started 20-30 years after LHC hits diminishing returns in the future? Is there any new expected physics in SSC range over and above LHC that would make it worth re-building in the 2030-2040 time frame? Are there any circular colliders proposed after LHC and if so, what are its energies and what new physics are intended to explore? Are there any new HEP physics in the 40 TEV range, i.e SUSY, technicolor, black holes, etc., that would be worthwhile over 14TEV, OR do new HEP physics require an order of magnitude more energy (i.e 400TEV) to build and explore? Hopefully 40 years into the future, the technology that made SSC prohibitively expensive in the 90s could be less expensive.