Gradient decent has been known for hundreds of years, it isn't machine learning. Optimizing parameters is an entire field in itself. Calling all cases of parame

Gradient decent has been known for hundreds of years, it isn't machine learning. Optimizing parameters is an entire field in itself. Calling all cases of parameter optimization "machine learning" is just a fad because it sounds cooler. Before computers people still optimized thing but by hand, doing the same calculations with a computer is no more machine learning than doing them by hand is human learning.