A month ago I met one of the most impressive people I've come across in a long time. His name is Luis. He's 17. He's been trading — crypto, silver, everything in between — since most kids his age were figuring out a class schedule. My brother told me I needed a hobby, so I started learning to trade myself. It's utterly fascinating. Here's what struck me: the barrier to learning anything right now is basically zero. Not low. Zero. Everything Luis knows, he taught himself with tools that are sitting right there for all of us. The majority of people don't even know they exist. But he found them. What's the last thing you taught yourself?