As a regular user of SatNav systems for routing me around traffic problems en route to client meetings, an article on CNN caught my eye this week, with the headline 'London cabbies: Brain cell mightier than microchip'.
Apparently their hippocampus - the part of the brain that deals with spatial awareness and navigation - is larger than in the rest of us, and the suggestion of needing artificial assistance to find their way around is clearly an affront to any self-respecting cabby.
The take-up of SatNav systems amongst them has been slow - around 4% of all London cabbies have
them, and then mainly for use on longer runs - airports and such like. Think I'll stick to the day job, and to the SatNav.