Helmut - your paper was short and to the point. I liked that. I gave it a high rating not because of its completeness, but because I learned something. Thank you for raising my attention to DeBroglie's "isolated particle", and the provocative title arising from that.
Carlo Rovelli is also quite correct: his paper on relational quantum mechanics is a landmark paper in the recent development of physics and should not be written out of the history. Anton Zeilinger is truly a great scientist, but so is Carlo Rovelli; I recommend you read his book on Quantum Gravity, and his wonderful work on relational quantum mechanics.
Kind regards, Paul