https://www.cnbc.com/2017/11/10/tesla-bear-says-elon-musk-makes-donald-trump-look-like-an-angel.html >Breaking into autonomous taxis could drive Tesla shares higher, says one analyst. But a short investor isn't buying that idea. >ARKInvest analyst Tasha Keeney said on CNBC's "Closing Bell" on Friday that billionaire investor Ron Baron may not be wrong to believe he can still make 20 times his money on his investments.