Final answer:
Special relativity has negligible implications for everyday consciousness and communication.
Step-by-step explanation:
The primary conclusion regarding the impact of special relativity on consciousness and communication, based on the discussions, is that special relativity has negligible implications for everyday consciousness and communication. The theory of special relativity deals with extreme conditions that are far removed from ordinary life, and its effects are negligible at typical speeds and distances. Relativistic effects only become significant under conditions not encountered in daily life, and even then, they are precisely described by mathematical predictions. Therefore, the idea that consciousness moves backward or forward in time or that consciousness is duplicated in reference frames under special relativity is a misunderstanding.