Comment by aaronwalker

There's a difference between being known by the mainstream and being used by the mainstream. Bitcoin is the former, but not yet the latter. It appears that Bitcoin's main use case is as a long-term store of value (like Gold, but digital). It will be very helpful to have a currency that anyone can use without one country's central bank controlling it, and with Bitcoin's strong network effects, its only a matter of time before it becomes adopted by more commercial banks, central banks, and individuals.