The essential feature of Barbosa and Leal is the ability for their circuit to pull current from out of the ground in any quantity that one should desire utilizing the benefits of a circuit which overly reacts. This status turns conventional reactance into a pump of sorts very similar to the heat pumps that are utilized to move heat from solar collectors on the roof of a home into a reservoir of heated water underneath the home to be recirculated through radiators within the home during the evening.
Oddly enough, the simulator of Paul Falstad lists a ground component under the subtopic of “sources” probably because a ground is a voltage source of zero voltage.
Voltage sources, within the context of simulators, are considered to be fixed in their voltage. But they vary in their current to make up the difference. Should any impedance or resistance attempt to modify their voltage they, then, respond by maintaining their fixed level of voltage by altering their current. Hence, a voltage source of any value of voltage – from zero on up to Infinity – can supply an unlimited quantity of current under the right circumstances, namely: under the influence of the correct arrangement of capacitive impedances and inductive impedances and resistances. In other words, a zero voltage source (such as a ground) can become an unlimited source of current.
And more significantly then this, we don't have to limit ourselves to the concept of an unlimited source of direct current. But, we can also avail ourselves of an unlimited quantity of alternating current – which is far more useful, because it conserves wherever the current is coming from by reusing it (by taking current into our circuit and passing it back to the Earth, and then -again- taking the current from the Earth and bring it back to our circuit, for as long as we can keep this up. Because, all of the heat that our circuit will be dissipating will eventually go back to the Earth in one format or another unless any of it leaks out into space it's going to be recycled.
So, the only danger is not using up current as if it were a fixed medium, but using it up too quickly. And, so, we use an elevated frequency of a parasitic oscillation to increase our efficiency of current-usage in contrast (or contradistinction) to direct current which is the least efficient method of utilizing current because you spend it once and it's gone.
But alternating current, of a sufficiently elevated frequency, provides an opportunity for the conservation of current by its reuse and all of this hedged against whatever rate of entropy is affecting our circuit so that we can come out of this competitive struggle with a net gain and overcome entropy.
Please see my post over at Substack, entitled: Revisiting Bewley's Archetype.
