opb:
When the ideas travel from the author's mind, through the filter of words and back again to the reader's mind some sort of diminution of those ideas comes about. This is due to the imperfection of the transfer of concept in each step of the process. I guess some of their potency is left behind on the page (or possibly nowadays, ends up swilling round in cyberspace incessantly).
Here I would disagree. I would say thast the concept is inevitably
*changed* by this process of transmission, but it may or may not be diluted -- indeed one of the good things about written fiction (as compared to, say, video) is that a mere sketch can be filled out and enhanced in the reader's mind, quite possibly to a vividness that it never had in the author's initial idea.
opb:
Anyway, because of this the author has to exaggerate somewhat in order that the idea which reaches the reader's mind compares favorably with the original image. Hence spankings get more severe, women more beautiful, the men stronger and more handsome, the weather is hotter/colder/wetter/drier than is normal.
Yes this exaggeration is frequent -- it is one of the reasons we call it fiction -- but I would say that it is not just to avoid or compensate for dilution. I would say that it is mostly the need for drama. Our emotions respond best to scenes and concepts that are abstracted and heightened, compared to ordinary experience. Videos have no "filter of words" -- they directly show images -- yet drama is if anything more prevalent there. My own fantasies -- and i suspect most people's -- are significantly dramatized compared to probable real-life events, and in that case there is no filter of any kind -- it is all within my own mind.