Kind of reminiscent of the dot com bubble. Most will fail, but the ones that survive could become the biggest companies in the world. One obvious difference is

Kind of reminiscent of the dot com bubble. Most will fail, but the ones that survive could become the biggest companies in the world. One obvious difference is that in this case the established players are making a serious attempt to develop the technology themselves. They do not intend to go the way of Blockbuster.