A group of people under the name "Satoshi" showed us it is possible. Thank you! I'm going to explain, however, that this is just a fraction of what needs to be done if a bitcoin economy is the final goal. I feel sick to read this forum day after day and see how much time, resources and talent are wasted chasing barren ideas. Current thread is the closest match to some of my own ideas.
Part I - Bitcoin is not digital currency.Although bitcoin concept is far from being flawless it can still serve well as digital gold. I would personally like to see competing block chains like digital silver, digital platinum, digital palladium or (why not) digital diamonds, and so on. All digital money must be open source distributed p2p applications and defer not only by the name but by initial distribution, cryptographic principles, network protocol specifications, mining methods, transaction fees and how they are defined, etc. All they must have floating exchange rates towards one another which will change in line with how efficiently over time they fulfill well known money functions:
"Money is a matter of functions four, a medium, a measure, a standard, a store."
Store of value
Unit (measure) of account
Medium of exchange
Standard of deferred payment
http://en.wikipedia.org/wiki/MoneyDuring last 5000 years gold served well as money. With the advent of Industrialization and mass markets it became apparent that physical gold is not very suitable to be medium of exchange. Contradiction was resolved by issuing paper certificates of gold ownership by private banks or governments. We all know many examples of how this was abused. The most successful system used was kind of mixture - bilateral or multilateral trade agreements where unit of account for every purchase was gold but only final outstanding balances were cleared through physical delivery of gold. Yet it was (and still is) expensive drill. Takes couple of days to prepare and move gold bars and coins from one point to another using train, plane or battleship. Until 1971 when some people decided they can play God and removed the gold standard. Only 40 years later we are where we are... in front of a major economic disaster.
Bitcoin concept (arguably) is a major step forward compared to gold. Instead of train, plane or battleship and couple of days preparations now it takes Internet connected computer and 1 hour of time (6 blocks). But still, it takes 1 hour to move bitcoin (digital gold) from one address to another. Given nowadays shopping habits not just 1 hour, but even 1 minute is too much!
Conclusion:
Bitcoin is a major improvement but still is digital gold, kind of. Complimentary payment system needs to be developed based on bitcoin (digital gold) as clearing currency. I would not use terms like fast bitcoin and slow bitcoin transactions, because this suggests overlapping parts of payment instruments, systems, block chains, or network protocols. THIS MUST BE AVOIDED AT ANY COST!
Next: Dichotomy