As every Olympic athlete knows, size matters. The London 2012 medals are the largest ever in terms of both weight and diameter – almost double the medals from Beijing. However, just as equally well-known is that quality beats quantity and that is where the current global austerity, coin-clipping, devaluation-fest begins. The 2012 gold is 92.5 percent silver, 6.16 copper and… 1.34 percent gold,...