45:19 in: “…the emergence of the quantized from the continuous is at the core of … all quantum phenomena. In the case of [electrical] charge — the conventional view of it, as a discrete negative particle with no underlying cause, comes from the fact the quantum physics does not account for the continuous material process that gives to charge in the first place.” At basis of this book PARADOX LOST (about basis of basic physics units) by DemystifySci (written after interviews with hundreds if not thousands of physicists, scientists on their youtube channel) is the fresh realization of the heretofore unseen electron not as discrete particle but instead resulting from the wiggly force-fields about atomic nucleii, analogous to cymatic patterns on a vibrating Chaladny plate. This is at the core of metrology.
“We realized … there weren’t a lot of material, mechanistic answers for the questions of fundamental physics. Nobody could tell you what charge was, what light was, what gravity was, electricity, magnetism, how these related to one another.” 1:35 into https://www.youtube.com/watch?v=oyeYqRtzZH8
