👍 Why is machine learning ‘hard’?

Liked Why is machine learning 'hard'? (ai.stanford.edu)

Machine learning often boils down to the art of developing an intuition for where something went wrong (or could work better) when there are many dimensions of things that could go wrong (or work better). This is a key skill that you develop as you continue to build out machine learning projects: you begin to associate certain behavior signals with where the problem likely is in your debugging space.