[davidsergey]

In finance, it's called risk appetite. Different people and different entities have a different appetite for risk, and they will act accordingly. There is nothing intrinsically wrong guesswork if parties understand the context, and don't lie to themselves.

>12 or 24 months is stable, technically? Hm. Faster iterations are better, usually, again if we understand the context, but I see a lot of companies that are too quick to go into full panic mode. An example would be recession – If you plan to invest for the next 60 month, and a recession hits you on month 20, the right choice would be to ignore the inputs, and keep investing. Those who pull their assets when prices are low usually lose.

Quick or long iterations are not be all solutions, once always have to keep the context in mind and use first principles to understand what is that we are doing, and trying to achieve.