Jason Barr, a professor at Rutgers, has a plan to expand NYC by building an entirely new borough of the city – “New Manhattan” – by reclaiming 1,760 acres of the surrounding rivers and ocean.

The point is that while such a plan might cost maybe $100 billion to build, the market value of the new buildings can be worth an order of magnitude more by virtue of the new housing, new offices, new retail, new hotels, new museums, new schools, etc.

Now that’s an ambitious proposal - it would be an amazing project if this gets funded.