Reply To: New Brooklyn Eruv: Time to Accept?

Neville,
As for the second part of your post, the point is that if you hold that Brooklln and Manhattan have issue even according to Rashi’s opinion (due to 600,000 inhabitants), then you’ve got the same issue in Baltimore and Chicago and others. Rav Moshe would actually be a yechida’ah opinion then by being mekil for those cities. However, if we assume like most poskim that Rashi’s shitah WOULD work for Chicago and Boston (because we need 600,000 traversing on at least a single street) then it works equally for Brooklyn & Manhattan.
Anyway, there are other factors to be lenient besides for Rashi. Do you homework.