I am learning machine learning
Uncle : What do you do young man?
Young man : Uncle, I am learning machine learning
Uncle : What, what, what is machine learning?
Young man : hmmm, in simple words, machine learns from data, a lot of data and produces results based on learning from data
Uncle : So if machines are learning from data, what the hell are you learning?
Young man : I am learning how to make the machines learn from data
Uncle : I need a beer, now!