charles: all right, matt schall. >> thanks, charles.e maintain gains and regaining a little more momentum to the upside. we have exciting news to report, usa winning first medal of any cross country since 1976, team of two women won it including kiki randal, the only mother on the u.s. olympic team. how about that? we will be right back. charles: sending stock down 27% in 123 states, stores, rather including washington, d.c. and now there's this. ride-share company uber telling goldman sachs that ultimate goal is -- >> uber technologies, saying that not just robot taxis but flying taxis will be commercialized in five to ten years and in tokyo, the uber is aligning itself with nasa technologies there to do things like this. you know, it's really, they've got competition bearing down on it, charles, look at this, sony is hooking up potentially with softbank and toyota to do its own ride-sharing. charles: does uber want to get to a point where we don't have cars, everything we do is uber? >> yes, in other words, you call uber and robot tax