I came to realize that capitalism is really good at doing the one thing socialism is really bad at: creating a learning process to help people figure stuff out. If you want to run a rental car company, capitalism has a whole bevy of market and price signals and feedback loops that tell you what kind of cars people want to rent, where to put your locations, how many cars to order. It has a competitive profit-driven process to motivate you to learn and innovate, every single day.