et al. [@3] considered the Feynman’s Hughes Lectures [@4]. They justify their procedure by arguing that “It is conceivable that Feynman had something like this in mind in 1963, when he wrote his notes.”

Although the attempt of De Luca et al. [@3] to make useful Feynman’s alternate way to handle electrodynamics is valuable, it turns out to be incomplete because the inhomogeneous Maxwell equations: $\nabla\cdot \textbf{E}=\rho/\epsilon_0$ and $\nabla \times \mathbf{B}=\mu_0\textbf{ J} +\epsilon_0\mu_0\partial \mathbf{E}/\partial t$ were not inferred. De Luca et al. recognize this incompleteness but they make no attempt to address this problem. Interestingly, Feynman himself wasn’t sure how to get the inhomogeneous Maxwell’s equations as may be seen in the third point of his first handwritten page, which is partially reproduced in figure 1. With signs of doubt (he wrote: How!?) he speculated with the idea that such inhomogeneous equations could be obtained from the wave equation for the vector potential or from “other principle.” It is not surprising that Feynman was interested in following the unconventional route of starting with potentials before considering the inhomogeneous Maxwell’s equations. Feynman liked the idea that potentials and fields had the same level of reality. In the context of the Aharonov-Bohm 