Search by keyword...googlecse Tesla Has Had A Major Bull In Cathie Wood's Ark. Now The Two Are At Odds Over Elon Musk's Bitcoin Stance Cathie Wood-headed ARK Invest’s Director of Research Brett Winton is calling Bitcoin (BTC) a “novel economic institution” and said its potential outweighs its energy requirements — a stance diametrically opposite taken by Tesla Inc (NASDAQ:TSLA) CEO Elon Musk. What Happened: Winton made his comments on Twitter Inc’s (NASDAQ:TWTR) social media platform Thursday in a string of posts. The Ark executive said that Bitcoin and other decentralized smart contracting platforms are “displacing a legacy financial ecosystem that is already misunderstood and significantly more opaque results in terrain fertile for large-scale misinterpretation.”