there is no way to take delivery of pm's on a global scale expeditiously. that's the point.
How much gold do you need? How many gold dealers are there around the world? Don't they generally have several dozen to a few hundred ounces available most of the time, even in poorer countries?
Do you walk around with wads of cash in your pocket, just in case you need to buy a condo on a whim? Why would you have to do the same with gold?
If I want to transfer my gold assets from
Calgary to
Quito, I can contact my gold dealer and have him get in touch with a Quito dealer. If he has a contact there already, great - there's a trusted network already set up. If not, he can inform the Quito dealer how much I purchased and then digitally exchange the balance using a contemporary currency.
When I go to Quito, I can either pick up my metal from the dealer there or keep it there in storage for a fee if that service is offered. Either way, my gold has moved without moving. If I need to move tons at a time, there would simply have to be larger nodes involved as close as possible to the destination.
In a stable worldwide economy, moving that much around would be exceedingly rare, especially with gold revalued into the tens of thousands of dollars level. How often would most people need to transfer an ounce at a value of an average American's yearly salary. Using Bitcoin instead of fiat for transfer would be more reliable, safer, and definitely faster for large amounts.
A global financial system with gold integrated into it is viable
now just using gold dealers - not even banks. The physical asset doesn't have to move but locally!