Interesting.. Echoing-as-repetition. The uniqueness remains
   bound to the original, yet at each echo, it is also a
   uniqueness, as nothing can truly be repeated _in full_... yet it
   is STILL anchored to the unrepeatable original, making it a
   repetition just the same.

   The drum beats once in a cave and echos against the walls. Each
   reverberation unique and yet, because its existence is owed the
   original event, it is a still a repeating; perhaps not exact but
   nonetheless owes its life to its birth.

   That's my first impressions of this. Yet causality is
   interesting in another way - the reconstruction of the
   hypothesized original from the echos going backwards in time. Do
   we reach a first cause? an origination point? Is the drum beat
   truly the original, or is it a repetition of drum beats long
   past, yet still a repetition because one is able to beat a drum
   at all... the last beat of the drum dependent upon the first,
   which is lost in time, yet we suspect it is there.

   This goes away from general vs specifics somewhat but it's hard
   not to wax poetic.