Good elaboration. You could say defendability is implied by uniqueness. Once it is copied it is no longer unique. Better to have it spelled out though. I used

Good elaboration. You could say defendability is implied by uniqueness. Once it is copied it is no longer unique. Better to have it spelled out though. I used the word ‘toward’ to hint that there is no perfect market fit. One can only continually improve toward the ideal, which also keeps changing. I think we largely agree. :)