Het, Steve! Did I get it right?

The Unified Field Theory, tell me where I am wrong, I need to double check for any errors. Start here, and work backward.

Says Wiki: Most scientists, though not Einstein, eventually abandoned classical theories. Current mainstream research on unified field theories focuses on the problem of creating quantum gravity and unifying such a theory with the other fundamental theories in physics, which are quantum theories. (Some programs, most notably string theory, attempt to solve both of these problems at once.) With four fundamental forces now identified, gravity remains the one force whose unification proves problematic.

Steve, been there done that.