All bold experiments begin with some degree of hesitation and doubt.
People doubted that the Wright brothers could fly, but they did. People doubted that Neil Armstrong would walk on the moon, but he did. People once doubted that they could talk to friends and family thousands of miles away, and now they can, via the telephone and the Internet. People often fear new ideas. There were doubts, questions and concerns, but after more than two years, it appears the experiment is off to a great start.