The richest man in America thinks Sal Khan's teachings are "unbelievable," so I would take heed if I were you. The best part about this is that you don't need to be Bill Gates to learn from Sal because you can get the lessons free of charge from his website khanacademy.org. The Harvard MBA and former hedge fund manager started Khan Academy four years ago without any intention of profiting off it. In fact, he even happened upon the idea by chance and started by tutoring his niece and nephews online over the phone and doodling on a Yahoo program.
Sure, his YouTube lessons, which include topics like algebra and chemistry seems to target pre-college kids, but I found plenty that adults can enjoy as well. It's a boon for us that these videos are meant for kids, because he takes complex subjects and makes them easy and fun. Watch the video below to see how Sal explains economics in cupcake terms — now he's talking my language.