The author Nassim Nicholas Taleb explains in his book,
The Black Swan that is more difficult to forecast the past than it is to forecast the future.
To prove that point he gives the example of an ice cube and the resultant little puddle of water which exists after it melts.
Forward looking: Given the size of the ice cube, the air temperature, the flatness of the surface upon which the ice cube rests an individual with engineering skill could do a good job of describing what that puddle of water will look like
after it melts.
Backward looking: Now, starting with that puddle of melted ice Taleb asks, how does one begin to forecast what the ice cube looked like
before it melted? Not so easy forecasting the past. There is an infinite number of shapes that the ice cube could have taken.
Now, that brings me to the ongoing discussion regarding the American automakers. Currently, Congress is looking at the car makers (the puddle) and peering backwards in time to determine which sort of cars they should have been making (the ice cube).
That members of Congress have focused on inconsequential matters (salary of executives, modes of travel to Washington, etc) tells you all you need to know about the seriousness of their discussions.
Absent from the discussions in Congress has been empirical evidence from either the car makers or Congress. The car makers have been too eager (in my opinion) to play Congress' game. Perhaps we cannot forecast the past, but we can look at real evidence and determine of the artifacts therefrom add or subtract from the problem.
Here is the sort of empirical evidence I'd like to see:
* From Detroit - Projections of capacity versus likely demand. I have followed the proceedings closely, and I have not seen hard evidence of capacity (how many of this or that type of car can be made). There has been discussion - but no evidence. How can Congress possibly go forward without knowing capacity???
* From Congress - Evidence that Americans will buy the sorts of automobiles that they (Congress) desire us to buy. There has been a fair amount of brow beating by the Congress against Detroit regarding their building inefficient vehicles (which the American consumer seems to prefer incidentally).
* From Congress - Explanation of the loss of rights by the shareholders of the automakers if an Auto Czar is empowered.
Bottom Line: The absence of empirical evidence in the hearings with Detroit tells us this is not a facts-based proceeding.