Ark Invest founder and Chief Executive Cathie Wood on Tuesday singled out the potential for artificial intelligence to accelerate the development of humanoid robots . Speaking to CNBC on the sidelines of the Future Investment Initiative (FII) in Riyadh, Saudi Arabia, Wood said machines that resemble people in size, shape and movement could represent one of the biggest AI opportunities. "I know a lot of people are worried about all [the] 'AI hype,'" Wood said. "But as we're looking to the future,