I went to an Indigo Girls concert last night. At one point, the lead singer from the opening act, B*tch and the Exciting Conclusion, stepped up to the mike during a rap and said something like "We're using all this oil for driving, and we don't need it any more," and a ripple of enthusiastic applause went through the audience even though she was mid-song.

I would be willing to bet almost all of us at the show still need oil because we don't have the infrastructure to do anything different reliably yet. I would also be willing to bet that as soon as there is a reliable alternative, people will be willing to move fast, and a wave of early adopters will change the economics. There is a growing swell of pent-up demand for a different solution.

It was nice to see the heartfelt and instant reaction to the singer's statement. Art connects with people.