Of course you can see for miles and miles from New York skyscrapers. That was never the question, but rather whether one can see a falling human body from four miles away.
If I were rich enough to afford a 68th floor Manhattan penthouse, you can be certain there would be a telescope on a tripod handy to the windows. And binoculars.
Decent binoculars would probably have been sufficient.
266 posted on 11/24/2015 8:48:15 PM PST by cynwoody