Humans used to kill each other all the time. Now it rarely happens (directly), because of a system of crime and punishment. By nature, individuals were sick of being attacked, so they created a system to protect themselves.
That said, you probably meant it is foolish to think you can change human nature from the top-down. Justice may be enforced top-down, but obviously its origins are from the the very grassroots up. Just because you weren't alive when it happened doesn't mean your nature as a person wasn't affected by the justice system, or political system, or that the it was a foolish endeavour.
If you can come up with a system which is so beneficial that even those people who profiting from the status-quo would want to switch to it, then you can change human nature.
At Loblaw's our President's Choice gift cards need to be peeled out of the frame they are inset into, with backing. There's no way to get anything off of the card until then. Plus the frame holds the little hole so you can hang them on the shelf.
And phone cards all just have identical barcodes. The POS system then generates their activation code upon confirmation of payment, and prints it on their receipt.
This is in little ol' Canada, by the way.
I've always been planning to implement a file backup system, but that's pretty boring stuff. The reason I brought up Dropbox is because ultimately I think it'd be the penultimate reason to pay for webhosting, were the idea implemented in FOSS. In the meanwhile, how do you backup your personal files to your webhost?
How can I make my life easier by using my hundreds of gigs of space, and thousands transfer each month? I googled for a while and couldn't find much geared towards answering my question. There must be some interesting web-based software out there that people run on their own servers to help productivity. What do other slashdotters keep installed on their servers?
An authority is a person who can tell you more about something than you really care to know.