Data Science Fails: There's No Such Thing As A Free Lunch

When I was young, I took a packed lunch to school every day, and since I grew up in Australia, my packed lunch would include a couple of Vegemite sandwiches. Unless you grew up in Australia, you've probably never tasted it. And judging by this American's first taste reaction of "Oh, that's bad!", you probably wouldn't like the taste if you tried it out. But I loved my Vegemite sandwiches, and they were my one-and-only lunchtime choice, no matter what the circumstances. While this blog isn't about Vegemite, it is related to lunch, specifically the no free lunch theorem.