So, a couple of thoughts: First, a nitpick - the range of emotions probably behaves more like a weighted average than a regular average (recent experience impact your overall interpretation of a certain event differently than the first time). Second, there seems to be an assumptions that thoughts and words are 'digital', and so follow the entropy laws of digital entities. This seems like a logical leap to me, which requires proof (especially since this seems to be in the foundation of the claims).