Being smart about smart glasses

We’re going to have them. Back in 2016 I bet several people we’d have consumer-class smart glasses and that 20% of the population would be using them by 2020. I got scared around mid-2017, but now I’m feeling more confident. However, rule one for a consumer product is that it has to look good. Rule two, it has to be comfortable, and rule three is has to be easy to use. If there’s a forth rule, it’s price, which is why people don’t buy Rolexes, Bentleys, and Louis Vuitton purses, unless they do. The parts of spectacles  The pioneer in