This guy is all talk and represents one problem with Silicon Valley. There are a lot of people now who can talk the talk and get the attention needed to get money but with no ability to deliver. Stop giving him attention until he actually shows something that matches even a little bit of what he is promising.

People who know what they're doing technically are deeply aware of the issues with their technology. Anyone in this area knows how hard it is to make these vehicles work. He is finding out the reality of what he promised two years late and is spinning it to get more attention.