The phenomena of path dependence and lock-in can be illustrated with many examples, but one of the most vivid is the gear we use to launch things into space. Rockets are a very old invention. The Chinese have had them for something like 1,000 years. Francis Scott Key wrote about them during the War of 1812 and we sing about them at every football game. As late as the 1930s, however, they remained small, experimental, and failure-prone.

Simply put, rockets are unsuitable for interstellar travel.  I'm currently writing an article that expands on this topic, which I will post on Stardrive as soon as it's done.  To read the rest of the article, click here.