This is extremely frustrating, particularly in IT where the only record that you made a formal proposal of a concept well before the strangly 'coincidental' proposal of the same concept by different people has been misplaced, or previously discarded, sometimes by the same people.
So far at this conference I've seen 3 of my own previous ideas put forward in this fashion, plus overheard far, far too many examples of the same problem occuring to other people. Just like in classic education systems, plagarism is rife, as it will always be. History is written by winners, managers, and well known names.
Parallel development certainly accounts for some instances of duplicate concepts, but it really cannot account for duplicate concepts originating (nearly word for word) from people or entities that you formerly worked with.
802.15.3 looks groovy.
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