Starbucks is rolling out a new recommendation engine this fall, powered by some heavy machine learning. "I see you went HAM last night. Have an extra shot in your unicorn frap!" Maybe just me. It will learn and predict your coffee habits and as the article says, “There will be no coffee secrets between you, if you're a Rewards member, and Starbucks.” Many people have their favorite drink in the summer and a different favorite drink when it is cold in the winter. You may not even notice it, but you might even crave a different caffeinated drink when it is rainy or on Mondays. Starbucks will notice.