Needs more. Synapses open or closed....sort of like a coin flip, but not arbitrary in terms of application.
Every flip of the coin has a 50/50 chance of being heads. It doesn't matter if the coin starts out heads up or tails up. If our decisions were made by synapses which switch states for a poorly measured length of time and then come to rest, the coin toss might be a better analogy.
I have always been amused by the paradox of knowledge. Information makes the process of making a decision easier, but it makes to process of making a guess more difficult.
If a person is presented with a problem, and they know three possible solutions to the problem, if one of their potential solutions is the real answer, they have a one in three chance of being correct.
A more knowledgeable person may know twenty seven possible solutions. If this person must make a guess, the odds are not very good.