(Bloomberg) -- Cathie Wood defended her firm’s decision to bail on Nvidia Corp. before the chipmaker’s shares surged 160%, saying the computer-chip industry’s boom-bust cycle poses risks.Most Read from BloombergEurope’s Economic Engine Is Breaking Down‘Last of Us’ Multiplayer Video Game Faces Setbacks at SonyEmerging US Debt Deal Would Raise Limit, Cap Spending for Two YearsCathie Wood’s ARKK Dumped Nvidia Stock Before $560 Billion SurgeA $189 Airport Travel Hack Is No Longer Working Very WellWo