Some very interesting feedback.
I think DeathandTaxes is the most realistic in highlighting that many of the issues that are going to cause problems are not yet on the horizon.
That 10 fold increase which is so easy to say, but so difficult to do is legend in the way it kills companies who overtrade.
I really don't see how bitcoin is able to scale in a way that could make it work in the way that would value it at $x gazillion etc!
However, where the value might be is in learning to to make it work. That is priceless and is going to benefit the users of this forum far more than the bits of digital currencies currently in their wallets in the long term.
Looking at the way that technology develops, an idea that is currently in the lab, will be on the high st in 30 years. Electronics takes half that time, and software half again. All this seems to indicate that crypto currency is 7-8 years away.
However, as mentioned earlier, Google took a few years to grow too, but if we are comparing bitcoin with search engines, I would be far more likely to call bitcoin Yahoo. Ripple may be Google, but more likely AltaVista. But using history to predict the future was never that easy!