sorry, i don't get your point. why do you talk about this potential figure as if it would be the most possible amount of coins issued...? Demand will define the number of coins.
and why should GBC sell all gold at the same moment? have you ever experienced that all bitcoin holders sold all of their coins within a moment? GBC offers a price guarantee and we are ready to buy back any amount of GBC if necessary. We can do that because every coin will be backed by the same amount of gold which will be deposited in switzerland.

please read through our website and you will have a lot of questions answered: http://www.gbc.is