In brief Elon Musk’s Neuralink and the Sam Altman-backed Merge Labs are driving a new wave of billionaire-backed brain-computer interface ventures. Current BCI progress remains medical, with only five Neuralink patients implanted as of September 2025. Experts warn BCIs are far from “thought reading,” and billionaire ambitions risk overshadowing real therapeutic potential. Elon Musk already...
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