Elon Musk's Hyperloop Alpha: A Quick And Dirty Explainer

https://www.google.com/amp/jalopnik.com/elon-musks-hyperloop-alpha-a-quick-and-dirty-explaine-1113185977/amp

How will people breathe in a vacuum in the tunnel? (Pressurized pods) And other questions about Elon Musk's proposed tunnel), answered.