Although it is very good to be skeptical, it makes the article less valuable than it could have been. 'Musk claimed X and people we talked to said they don't kn

Although it is very good to be skeptical, it makes the article less valuable than it could have been. 'Musk claimed X and people we talked to said they don't know how it's possible.' I am not saying that the people they consulted didn't know how, but using just that for the entire article was unnecessary. They also claim battery density is increasing by Y% and maybe Tesla is banking on that. Well those density increases because someone somewhere is finding ways to do it. It's not happening by some magic. Maybe Tesla found some ways to improve it? Why do they have to rely on someone else? Maybe I am being too critical of the article and I understand that author too can do very little but speculate. But maybe consult variety of people rather than just 'I don't know how so it must not be possible' people. Edit: is there a way for tesla to purchase electricity for solar city customers or something and direct it to charging stations? Or is that now how it all works?