It's entirely possible for Netflix to be a fantastic success and a disastrous failure

Not just Netflix, of course. For any of the numerous companies with both huge valuation and sky-high price to earnings ratios, healthy growth and a couple of decades of solid profitability aren't enough to justify the level of investment. These companies have to be unprecedented, spectacular successes that completely dominate their industries.This is one of those facts that everyone knows but few spend much time thinking about, at least few of those in the business press.

Personally, I hope that Netflix has a long and lucrative run -- the more players, the better -- but it's important to remember that the bullish argument for the stock price requires blowing Disney out of the water, and right now, the house of mouse is looking rather substantial.

Check out this graphic courtesy of Barry Ritholtz: