Bravo, like all Minecraft terrain generators, relies heavily on randomness to generate its terrain. In order to understand some of the design decisions in the terrain generator, it is required to understand noise and its various properties.
Noise’s probability distribution is not even, equal, or normal. It is symmetric about 0, meaning that the absolute value of noise has all of the same relative probabilities as the entire range of noise.
When binned into a histogram with 100 bins, a few bins become very large.