Comment by robbiep

The interesting component to this is what happens when the payment system $hits the bed. 3 weeks ago last friday and saturday in sydney the communications system underlying about 50% of all financial transactions (taxi card readers, many ATMs, many businesses) collapsed with the result that if you didn't have cash you couldn't make an exchange. How robust do people really think these systems are? I certainly have no faith in a perfectly digital future (despite being heavily invested in it) - we are but one solar flare away from behaving like barbarians.