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HuthLab researchers (l-r) Alex Huth, Shailee Jain and Jerry Tang behind an fMRI scanner in the University of Texas’s Biomedical Imaging Center. Nolan Zunk/UT Austin

The brain is the most complicated object in the universe. This is the story of scientists’ quest to decode it – and read people’s minds

As Elon Musk’s Neuralink begins inserting chips into human brains, we trace the history of ‘mind reading’ technology and assess the potential risks and rewards