Sandgrounder, thank-you for taking the time to post a fascinating explanation.
Birdie,
a). I am not stealing anything. I pay a quarterly account with my ISP.
b). I have never failed the 'cube test'.
c). Surely the ability of a candidate to travel from home to the selection centre and back again, (safely) is, itself, a demonstration of spatial awareness. As is the ability to interpret the contours on an Ordnance Survey map. This latter skill is also handy for approach radar controllers, concerned as they are, with the small matter of terrain clearance.
d). I, or any of my neighbours, could sign up at my local flying club to do a PPL. This would probably require a level of spatial awareness equal to that of an ATCO. We would not have to sit a 'cube test' to commence training.
e). The popular game of soccer also requires a certain level of spatial awareness. I doubt very much whether 'Goldenballs' (Mr Beckham to you), has ever undertaken (or would even understand) a 'cube test'.
f). The magenta font I often employ is designed to stand out from the (rather mundane) 'bic biro' blue and catsick cream landscape hereabouts. It also looks more 'progressive'. 
Last edited by ZOOKER; 23rd Aug 2008 at 07:31.