This is what irks me so often when reading these comments. This is just software inside a ordinary computer, it always does the same with the same input, which

This is what irks me so often when reading these comments. This is just software inside a ordinary computer, it always does the same with the same input, which includes hidden and global state. Stating that they are "non-deterministic machines" sounds like throwing the towel and thinking "it's magic!". I am not even sure what people want to actually express, when they make these false statements. If one wants to make something give the same answers every time, one needs to control all the variables of input. This is like any other software including other machine learning algorithms.