On Monday, December 7, 2015 at 9:04:51 AM UTC-8, Dan Marotta wrote:
I also agree that newer battery technology is needed to make this
anything more than a high-priced toy, but then that's what our
gliders are, aren't they?
Dan, 5J

I suppose one could have also criticized the Wright Flyer for having an impractical powerplant, but that would be missing the point . It is inevitable that battery technology will improve, and when it does, the Volocopter will be ready for it.