An anonymous reader writes: Neuralink, the startup co-founded by billionaire Elon Musk, has taken steps to sell as much as $100 million in stock to fund the development of technology that connects human brains with computers. The San Francisco-based company has already gotten $27 million in funding, according to a filing with the U.S. Securities and Exchange Commission. Musk said via Twitter on Friday that Neuralink isn't seeking outside investors. In June, Musk said Neuralink is a priority after much more demanding commitments to his automotive and rocket companies. "Boring Co. is maybe 2 percent of my time; Neuralink is 3 percent to 5 percent of my time; OpenAI is going to be a couple of percent; and then 90-plus percent is divided between SpaceX and Tesla," said Musk at the electric-car maker's annual shareholder meeting.