The biggest similarity I see is given away by the Methane/Oxygen engine. This means he's aiming at generating fuel on Mars. The biggest difference is the empha

The biggest similarity I see is given away by the Methane/Oxygen engine. This means he's aiming at generating fuel on Mars. The biggest difference is the emphasis on reusable craft. I'll post something more in depth once I watch the whole video (or some rocket-head will beat me to it).