[bombcar]

Downtowns have been revitalized and saved, it's quite possible and there are examples.

Often it involves something like building a stadium or convention center or other attraction, which makes dwelling units nearby desirable.

San Diego's gaslamp quarter is an example.

[fragmede]

Where is Detroit in this example?

[bombcar]

Making Cleveland look good.

Detroit's problems aren't locational, they're otherwise (as can be seen by the cities that are (technically) not Detroit but right outside it doing pretty well.