I find most of my general theories from when I was young were generally quite good, but slightly naive. My father was a mechanic, and I always wondered why car

I find most of my general theories from when I was young were generally quite good, but slightly naive. My father was a mechanic, and I always wondered why cars didn't have generators used for braking. Regenerative braking became a great idea for cars powered by an electric motor, not so useful for gasoline powered cars. I thought about what it would be like to live forever, and I figured you would go through every possibility of an ever growing world. This is not so different from what I later learned about quantum physics.