I agree with many comments here but especially with this - the domains these alien artefacts touch are the things that makes them so tricky. Nonlinear optimizat

I agree with many comments here but especially with this - the domains these alien artefacts touch are the things that makes them so tricky. Nonlinear optimization is one such area I work with regularly. It seems there is an analogy to python and web programming here - a lot of people can work with things in python/js that are like alien artefacts to them. Are some areas more prone to alien artefactness than other areas? What about deep learning - how many folks doing it actually understand things vs just use neatly packaged alien artefacts?