An analysis isn’t really going to work without a lot of extra information. People don’t just leave overnight because if they own property, which is the claim here, then they have to find someone to buy it. And as other people start leaving property values would plummet so then there would be less incentive for more people to leave.

And to begin with, really poor people have incredible difficulty moving in general, because they don’t have extra money saved up to pay for a truck or to get a new apartment or to take time off of work to deal with all of that or to even apply for jobs in distant locations.

So let’s move on to middle class renters. What about them, would they leave? But if somehow they did, that, would I think make room for a lot of other people to move into the city. As you know, many people commute from New Jersey and dislike it on account of the fact that they have to live in New Jersey and if they could move into the city they would probably do so. And then there’s all of the other people who don’t currently live in or near New York who are hearing about this person who might make the city an amazing place, from their point of view, and if they can get in on it then they’re going to.

So I don’t see the population significantly declining even if you somehow had people moving in and out at record numbers, and even that doesn’t seem like it makes sense.