From Brian Clegg
As the person who wrote the costing model used by British Airways in the days of Concorde, could I point out that Joshua Howgego got the wrong end of the stick in calling Concorde the classic example of the sunk-cost fallacy (12 December 2015, p 31)?
While it is true that the governments and aircraft manufacturers made a loss, it’s not true that Concorde “never made any money in all the decades it was flying”.
Swindon, Berkshire, UK
