Deletion of Event symmetry

Comment: My PROD rationale was {{tq|With the original publication getting only 11 citations in 25 years, even by the permissive standards of Google Scholar (counting unpublished items and self-citations), this is not a notable physics idea.  throughout.}} I thought at the time that that was an understatement; the nomination goes into more detail
Stance: delete
Cited policy: Wikipedia:No original research (WP:SYNTH)