We often overlook the importance of the word learning in the catch-phrase "machine learning". But, what does it mean? Learning refers to a process of iterative improvement. While there are quite a few algorithms, there are really just a couple of common learning techniques. One of the most common (and simplest) is gradient descent. This technique is relatively simple.

Data Science can either be a discipline or it can be a profession. The choice is up to the practitioners. It is convenient to move in the direction of a discipline because it is easy. I intend to pursue it as a profession.