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We reveal a new way in which the Lorenz gauge condition is related to theelectric charge conservation, in a universe where electrically charged pointparticles are created and annihilated. We derive our results using timesymmetric electrodynamics, relying on observations made by Jacov Frenkel (in1925) and John Archibald Wheeler (in 1940). Both the Lorenz gauge condition andthe electric charge conservation are expressed as closed path integrals inMinkowski space. The integration path is the same, it is the sum of all"Wheeler electrons".

Time symmetric electrodynamics, electric charge conservation, and the Lorenz gauge