A crash course in changing the world.
I think the solution that will make the biggest change in how we use money is in fact an experiment that is already taking place every single day! Instantaneous transfer of money--whether it be to a friend or to a store--will achieve the most efficient means by which to pay for goods and services. Apps like Venmo, PayPal and Square allow you to send money to friends or to pay for items just by typing in an amount and clicking send. No longer having to wait for checks to clear, credit card statements to come in, etc., you can send and receive dollars in real-time. Although not replacing fiat currency itself (i.e., since transaction will still be denominated in local amounts), instant money transfers made by the tap of your fingers will be the future of how we transact in an increasingly globalized world.