Dear Loet and All,
Your remark “what is communicated and why?” sounds suggestive in many respects. If the question is paraphrased into “what is communicated by what?”, the perennially perplexing issue of what is time would come up to the surface once again since the temporality of communication is already there. The time involved in this question is certainly different from another time pertinent to one more question of “what is moved by what?” as entertained in physics in general and in mechanics in particular. At issue is the nature of time unique to the exchange of a message, whether it may be an atom, molecule or whatever else for that matter. Cheers, Koichiro
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