MrSeb writes: "There's been a lot of noise about Sweden becoming a cashless economy, and the potential repercussions that it might cause, most notably the (apparent) annihilation of privacy. Really, though, I think this is a load of hot air. Physical money might be on the way out, but that doesn't mean the end of anonymous, untraceable cash — it'll just become digital. If Bitcoin has taught us anything, it's possible to create an irreversible, cryptographic currency — but so far it has failed because it doesn't have sovereign backing. What if the US or UK (or any other country for that matter) issued digital cash? We would suddenly have an anonymous currency that can be kept on credit chips (or smartphones) and traded, just like paper money. No longer would handling money require expensive cash registers, safes, and secure collections; your smartphone could be your point of sale. It won't be easy to get governments to pass digital cash into law, though, not with big banks and megacorps lobbying for centralized, electronic, traceable currency. Here's hoping Sweden makes the right choice when the referendum to retire physical money finally rolls around."