A decade ago it was pretty rare to see an all-electric car on the road. Now that you see them all. the. time. we wondered – what about electric vehicles in the *sky*? Several companies are working to overcome the challenges of all-electric flight, and it’ll likely be a long time before your commercial plane goes electric. But smaller, shorter-distance applications of all-electric air transport might be just around the corner. In this episode, we speak to Dr. Martine Rothblatt to learn how her company is working towards using electric helicopters to deliver the ultimate precious cargo -- transplantable human organs.