Elon Musk’s Mission to Mars
There's one interesting quote in the article:<p><i>Musk: I can’t tell you much. We have essentially no patents in SpaceX. Our primary long-term competition is in China—if we published patents, it would be farcical, because the Chinese would just use them as a recipe book.</i><p>If your process/ideas are sufficiently complex, it reduces competition if you don't file a patent.