Detroit has lot in common with New Orleans. both cities may be raised, set on fire and rebuilt with little or no interruption except in gang warfare.
To quote one of the great cosmic philosophers (Mr. Scott of the Starship Enterprise) "The more you complicate the plumbing, the easier it is to stop up the drain." Of course, nobody would ever consider doing less in the first place, because then some special interest group would lose out.
The one thing I don't see yet in the future is the actual Lady Thatcher Point, where we finally do run out of other people's money. Since we have spent 2 generations spending more than we have coming in, developing the ability to control that spending habit will be an ugly process to watch.