Size and Decision

If there are 10 options before us, then suppose we have picked option number 3. Here we can easily judge and evaluate whether we opted for the right one or not. In other words, we can say how good our picking was based on a comparison with the other 9 options. (Assuming that you have a decent amount of time on your hands)
However, if there is an overload in a number of options, probably 10 million or so then we can never know whether our decision was accurate or not. we can only at best assume that we made a smart choice. As the sample size (Using the lingo of statistics here) increases, our ability to decide decreases, and the analysis falter. Unless we have a supercomputer in our heads, it is hard as we progress into the information age. Big data and AI will aid us for sure but a common man or an ordinary individual (not organizations) neither have the resources nor the technical know-how under the belt to do so.
Unable to handle this gap, the mind invents more heuristics, shortcuts, use-less logical fallacies, and unknown biases which hide in the Freudian unconscious rarely accessible to 6-7 seconds attention-owning sapiens.