To make this scenario more concrete:
Imagine if the July-to-mid-August 2012 slope on this log-scale chart were setting the exponential pace for the next few years, and it just took a little detour because of the pirate@40 scam. Then following that line to the present day would put us at around $200/BTC
right now just to revert to the mean
Now notice that this slope is almost as steep as that of the current rally that started last month. Is the current pace, or just a bit slower, the multi-year trendsetter??
This of course seems highly unlikely, and would normally be a classic investing error of wishful/"greedy" thinking, but I want to note it for reference purposes just in case something insane like that actually happens. For example, if we see $100 in the next few weeks - probably justified, in the eyes of spectators, by the breaking of the all-time high at $32 - and it holds above $100, it might be worth considering the exponential moonshot more seriously.
Note also, the July-Aug 2012 slope could very well be a bit steeper than the real mean in an exponential run-up scenario, just due to overexuberance, making the $200/BTC figure too high. Combined with the fact that the current rally is a bit steeper than July-Aug 2012, even
this crazy exponential growth scenario might suggest we're getting overdue for a small correction.
Once again, I emphasize that this is merely a far-fetched "just in case" analysis. More than likely this post will instead be looked at in hindsight as a classic sign of a bubble. Either way, long term BTC is either zero or galactic, and if it's galactic it has a huge amount of unreasonably fast running to do.