How might the universe end? If the standard model is all there is, it suggests the universe has not yet hit "bottom" in energy; maybe the SM is just incomplete (ahem). Frank Blitzer, @Dr_JimGates, and I explore these questions in "Reality in the Shadows". https://www.amazon.com/Reality-Shadows-What-Hecks-Higgs/dp/1936411393 https://twitter.com/PhysRevD/status/974631578717642752