Talk:Dirac hole theory

relativity
While the usual explanation of the Dirac sea is as written, as I understand from a Feynman lecture, the actual reason is relativity. In some reference frames, an electron seems to be going backwards in time, which then looks like a positron going forward. Any interest in adding this to the article? Gah4 (talk) 21:10, 14 February 2019 (UTC)