for us someescribe of the technology going into these personnel in electric flying vehicles and wheredoes it come from? because it cannot just come from a clean slate. there must have been a lot of work done previously. highlight to areas that have evolved to the point where there is so much excitement air. electric motors, right? you have to give a lot of credit to elon musk for pioneering a new generation of the engines that has very high efficiency. great fuel efficiency. able to manufacture them at scale because the prices have come down. the second area is autonomous computers. so there is a lot of attention on autonomous vehicles. when you think about aircraft, a of things cars have to deal with. pedestrians, the quality of the roads, traffic, those are not going to exist in the sky. and so to some extent this is an to solve.blem so the development of artificial intelligence, coupled with advancements in materials and electric motors makes this easier. sheelah: do you sense that investors are seeing this as a orble investment opportunity is it a handful of guys trying to realize