daasyochid: You proved my point because a multitude of people accept the eiruv in Boro park.
charliehall: I said that “bechayov”- during his lifetime, R’Moshe zz’l disapproved of any eiruv in Manhattan. his main reason was that the streets were “mefuloshim” (through streets) and there was “shishim ribu” (600,000)people in manhattan that invalidates most eiruvim. I also know that-prior to R’Moshe zz’l- Rav Henkin was the possek in america. In some ways, it is sad that he has virtually been forgotten.