Teller talks at SXSW about the demise of Glass, and the value of failure:
[Glass] was one of those things that we had to get out into the world as soon as possible. We learned a lot of things about the tech, like the battery. It was also valuable for social testing, and I’m really grateful for all of the fearless pioneers who went on that adventure with us…The great decision was to do the Explorer program. The thing that we did not do well is that we allowed, and sometimes even encouraged, too much attention to the program.
If you’re not failing at least some of the time, you could be learning faster. It’s not about going out and not having these bumps and scrapes, it’s about getting full value from them.