grand unified theory

From The Great Courses Daily, May 5, 2020: Fermilab scientist Dan Hooper writes about how Einstein’s failure in achieving a unified field theory didn’t stop the others. Physicists continue to search for a theory of everything that unites the effects of general relativity with the quantum mechanical nature of our world.

From Live Science, June 4, 2019: Fermilab scientist Don Lincoln discusses why it could take millennia to find a theory of everything. It would answer all questions, leaving nothing unanswered. Why is the sky blue? Covered. Why does gravity exist? That’s covered, too. Stated in a more scientific way, a theory of everything would ideally explain all phenomena with a single theory, a single building block and a single force.