Sam Altman, CEO of OpenAI, is intensifying his rivalry with Elon Musk by investing in a new brain-computer interface startup called Merge Labs, which will directly compete with Musk's Neuralink. This move is part of a broader strategy where Altman is challenging Musk's ventures across multiple sectors, including social media and electric vehicles, targeting companies such as Twitter and Tesla. The competition between the two tech leaders, who were once collaborators at OpenAI, has evolved into a comprehensive tech rivalry marked by competing innovations and business strategies. Merge Labs aims to advance neural interface technology, representing a new front in the race to integrate human cognition with artificial intelligence. Altman's involvement in this space underscores the increasing convergence of AI and brain-computer interface technologies among leading tech entrepreneurs.