The quote in the title, from JM Keynes, gets to the heart of the problem that continues to cause havoc in Edinburgh.
Here, in Liverpool, this report shows the council prepared to look at anything that might help their city, and the people who live and work in it.
The point is not that because Liverpool is proposing closing down all it's bus lanes ,so should Edinburgh. Conditions are different in different cities.
The point is that Liverpool Council is prepared to look at different solutions in 2013 because the facts and conditions are no longer the same as they were when previous decisons,