Nowadays money is being transferred electronically, from bank to bank, online purchases, and credit cards are just some examples of how the actual dollar (or whatever you use) is disappearing. Trillions of dollars a day are being transferred daily and you don’t see people loading sacks of money into a safe anymore. What do you think will happen to the dollar in the near future, and what will replace it? Also is this possible change a good or bad thing for the people, not in an economic sense but in a security and convenience way.

it wouldn't surprise me in the least if people suddenly realised theres more 'E-currency' in the world than the actual currency that physically exists.

That's kind of a scary thought. XD I'm hoping something like that doesn't really come up until after I'm gone.