I will probably re-title this and perhaps move it to physics, but we need at least one thread to discuss possible physical mechanism by which Epicurus' theory of images is treated as possibly containing at least a grain of truth and possibly much more.
I may also rewrite this first post over time, because I was rushing when I first posted it. Primary issues to discus would include:
(1) Analogies for how the brain might be affected by external sources not coming through the eyes or the five senses, which I think would include research on how the brain can be impacted by radiation (including cell phones, and similar issues discussed here: https://www.mdpi.com/2076-3425/14/4/308
(2) Analogous physical principles now known to us by which a received (even with no power) can react to external stimulus, such as passive RFID devices: https://en.wikipedia.org/wiki/Chipless_RFID
(3) Exploring just what is reliably asserted about prolepsis / images and what is not, such as our recent discussions that prolepsis would not be the receipt of fully-formed ideas, but something less than that. We know for example that Cicero was joking/picking at Cassius alleging that Epicureans might say that he (Cicero) was thinking of Cassius because of an image of Cassius floating through the air, but that might be a reduction ad absurdem and might well go significantly beyond what Epicurus actually asserted. Presumably Epicurus did not think that fully-formed "conceptual pictures" (like the conceptual picture of Cicero) floated through the air to be interpreted by the mind directly as an image of Cicero, but something less than that, just like the eyes transmit something that in our MINDS we conclude indicates Cicero, not because the eyes "tell" us it is Cicero.