Then my question is how can function occur in the natural world without intent. Natural selection explains why that function is kept once it occurs. Think of

Then my question is how can function occur in the natural world without intent. Natural selection explains why that function is kept once it occurs. Think of it like this: a space of N dimensions, for N properties, with an infinite number of values for each. Small variations (genetic mutations) of each of these property values, will move the position of the system in this N dimensions space. Initially, most of the parameters are null. But, there's a clear trajectory, or a set of possible trajectories from the initial position to the position where, by a certain combination of parameters, a function occurs. When there's intent, it's very easy to see the path from A to B. But when there's no intent, and not foreknowledge of the possibility of a particular function (a special position in the N space), finding that particular spot by random variations sound enormously improbable. Does this low probability have a name or something?