I Hadn't Realized Machine Learning Reached Maturity Already

My (BSc + MSc) background is Physics and I have always found Philosophy of Science very interesting to read and reflect on. However, I was not aware of the following until a few days ago: a knowledge corpus is being created that is called  Philosophy of Machine Learning.

Two examples:

1) Philosophy of machine learning: knowledge and causality

2) Machine Learning Meets Philosophy: From Epistemology to Ethics

A very good symptom in many senses...