Odaily Planet Daily News: Coinbase co-founder Fred Ehrsam has become the latest Silicon Valley billionaire to enter the brain health industry, and his startup Nudge has hired at least 8 employees who previously worked at Neuralink under Musk. Unlike Neuralink's technology path of implanting chips into the brain, Ehrsam's Nudge aims to develop a consumer grade head mounted device that achieves the goal of "one click treatment of brain diseases, improvement of mood, and sleep aid" through ultrasound technology. Scientists point out that there are still many controversies surrounding the company's technological solutions and underlying scientific principles, but Ehrsam, as the creator of the world's largest cryptocurrency exchange Coinbase, its successful experience and strong funds (according to the billionaire index, its net worth is at least $3.2 billion) may make it a strong competitor in this field. (Golden Ten)