Interesting. Quite off-the cuff distribution estimates. Maybe getting a wisdom-of-crowds view would help. Problem is, I mostly agree.
Possibilities for bitcoin going to zero: a flaw in the code is found and exploited. Something on the mining end. Nuclear war, asteroids, global ebola pandemic, something on the mining end, sha256 getting cracked, etc. Probability of any of these things happening <0.1%.
Possibilities for Bitcoin going below $10: Satoshi's stash getting dumped on the market, outright criminal ban on owning bitcoin in several Western countries, Bitstamp and at least one other major exchange getting hacked to the point of insolvency, FBI coins AND Bitcoin investment Trust AND Winklevoss stash all liquidated, or >ten major early adopter whales liquidating their entire stashes. probability of any of these things happening: <1%
Fair order of magnitude estimates there, no comment.
Possibility of bitcoin retreating to April 2013 high of $266: $400 support doesn't hold when all Chinese exchanges stop taking deposits, China bans bitcoin ownership and trading altogether, U.S. stockmarket crash/correction that dries up Silicone Valley money, Coinbase folds, etc. Probability: ~40%
Too high, unless you include flash spikes in this category. Too many buyers. Too few coins. For flash spikes, you really need to put time-bounds on this, because without any time bounds, it seems like it should be more like 60-70%. The 40% number can then be dialed-in by adjusting the time boundaries of the estimation period. I'd say 2 years, minimum, to get to 40% probability.
Possibility of trend reversal without whales: 1%. with whales: ~40%
Rather than make artificial whale/non-whale distinctions, let's assume Zipf distributed bid and ask sizes, Poisson queuing, as is almost certain to actually occur.
If this is the remainder case, then it's just 100% less the items above.
Possibility that Bitcoin goes to $10,000 this year: hyperinflation in the U.S. Dollar, major currency or banking crisis in a large economy with Bitcoin as a major player in evading capital controls or inflation hedging, Google, Facebook, Microsoft or other major tech company fully embraces bitcoin, investing billions. Probability: ~5%.
Let's push it out to two years, in the manner of the historical bear market in BTC. I'd give this >90% in that case. But I would assign very different causes. Namely, ETPs. Even if there are no U.S. ETPs, there will be in at least one of Hong Kong, UK, Singapore, Frankfurt -- all markets which are accessible to U.S. investors via U.S. based brokers -- with >95% likelihood. After that, 10k is a cakewalk.
Possibility of spontaneous mass adoption this year with no major media campaign or sea change in media coverage: zero. Next year, maybe. Movements need leaders.
Agreed on zero. Not sure movements need leaders, however.
I'm loaded in BTC and mostly holding, but it could get really really ugly. again.
If you are buy-n-hold, given that you don't time your entry, then you want it to get as ugly as you can withstand, and no more ugly than you can withstand. That means you successfully maximized return subject to your drawdown tolerance. The only way to avoid such stress is to dial down risk by strategy change or diverification, as e.g. timing entries and exits.