When there are many options, the chances increase that there is a really good one out there, and you feel that you ought to be able to find it. When the option you actually settle on proves disappointing, you regret not having chosen more wisely. And as the number of options continues to proliferate, making an exhaustive investigation of the possibilities impossible, concern that there may be a better option out there may induce you to anticipate the regret you will feel later on, when that option is discovered, and thus prevent you from making a decision at all.
