I haven't played that game.

Here is how I think about it: a salary has a roughly constant value in dollars so it's cumulative savings function is linear in dollars. A startup can offer a hockey stick growth, but the reality is it may be 0 for years, and then a lump sum (maybe) at some indefinite point in the future. If the expected value of the startup were only 2x higher in dollars, adjusting for dollar-time-value (S&P 500 opportunity cost) but if it were say, 5 years out, most bitcoiners would expect the 2x value is negative yielding in bitcoin terms.