There is something I don't understand about Bitcoin: right now there is a lot of instability in the exchange rate of Bitcoin and everyday currency like dollars, euros, or pounds, from the graph I checked from here[1].
How can it be a viable alternative, when its value can change by 40% in a month? Gaining or losing value is not important (if it's increasing value, I have to delay exchanging to dollars as much as possible thus withholding funds), but as long as a vast majority of the population is not using it to pay or get paid, it poses a serious problem to its adoption.
The only solutions I can think of are: either it becomes stable, and so everyday people can exchange other currencies in Bitcoin, or people get paid in Bitcoin by employers, so they can spend it whenever they want, but neither of them look like they're going to happen soon.
Am I wrong in my analysis? I'm not an expert in finance so maybe I might have missed something.
[1] http://bitcoincharts.com/charts/mtgoxEUR