> take my parents, for instance, who refuse to get into a car not driven by a human. I think people are doing lots of things that they couldn't imagine doing b

> take my parents, for instance, who refuse to get into a car not driven by a human. I think people are doing lots of things that they couldn't imagine doing before those things existed/became widespread. How many people would never get a cell phone and has one now? People need to see that stuff works and then they become adopters.