The fine-structure constant combines an extraordinary number of physical properties of our universe: the speed of light, the charge of an electron, energy differences in quantum mechanics, and more. When you combine all these values by multiplying and dividing, you get a value, with no units, and one that is not too large: just about 1/137. Not 1/137 feet, not 1/137 minutes, just 1/137. This number is neither extraordinarily tiny or large, and almost exactly one over 137, though it’s actually about one over 137.0359996.
Genetic programming is an evolutionary spin on function-fitting. If you have a lot of data and are trying to make sense of it, you can use a brute-force approach to figuring out what sort of formula describes what you have. Or you can evolve the solution. You start with a population of randomly generated equations that are mutated and tested for their fitness, which is simply how closely the equations describe the data. Most of the time, these equations are terrible, but evolution improves the results, in a ratchet-like manner.