You ought to start thinking in the other direction. Bitcoin is useful. Very useful.
If it gets up into the area of real companies, we are talking the bicoin network being $100 billion (hell ebay is $75bil, visa $100bil+, apple has $100bil in cash on hand, etc)
So what is $100bil divided by 21mil coins? How rapidly would the price of a bitcoin need to double for us to make it there in 3 years? how about a year and a half?
Social media spreads awesomeness like wildfire and bitcoin is spreading from the geeks and early adopters to the sneezers ... the sneezers will take us over that tipping point.
it all comes down to. is bitcoin useful / how useful
doesn't matter what speculation does to the price, if bitcoin is not useful its not worth anything...
if we wake up and find that we've had a 51% attack and will require a year for the blockchain to "catch up" as huge sums of double spend bitcoin start to vanish!
just how useful will bitcoin be then?
