303 | AMA | February 2025

6043.924 - 6064.978 Sean Carroll

It sounds good when you say, well, there was Schrodinger, and he had the non-relativistic thing, and then Dirac came along and he made it relativistic. The relativistic thing is quantum field theory. That's what the relativistic thing is. But even in quantum field theory, you start with the classical field, And Dirac and Klein and Gordon gave us equations for those classical fields.