How To Purchase Gold and Silver

Gold backed debit cards will likely become very popular, as long as it is allocated backed for delivery metal. That way the biggest criticism against owning gold is eliminated - I could walk into any store and maybe spend a couple grams where the store owner is none the wiser receiving whatever local currency, and a couple grams are debited from my account. As long as it is audited and not ponzified / leased out/corzined/ fractional reserved to the sky.